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003-TL10 TOW GUIDE ADS12/4/0912:46 PMPage CV2MAN, TRAILERS ARE LIKEWILDANIMALS.They’re always tryingto get away from you.Until now. Trailer sway control, standard.Go To:.comCommentsContents
003-TL10 TOW GUIDE ADS12/4/0912:46 PMPage CV3FORD F-150FIND OUT MORE AT FORDVEHICLES.COMFord Motor Company, go to www.trailerlife.com/infoGo To:.comCommentsContents
004-TL1002 TG Contents LO12/7/0912:21 PMPage 4EDITORIALPUBLISHERBOB LIVINGSTONEDITORKRISTOPHER BUNKERMANAGING EDITORMARLEEN CANNIFFCONTENTSCREATIVEART DIRECTORMIRANTE ALMAZANEDITORIAL/BUSINESS OFFICE2575 VISTA DEL MAR DRIVEE, VENTURAA, CA 93001 TEL (805) 667-4100 FAX (805) 667-4484ADVERTISINGVentura, CaliforniaVP/NATIONAL SALESTERRY THOMPSONBUSINESS MANAGERDENIELLE STERNBURGP.O. BOX 8510, VENTURAA, CA 93002 TEL (805) 667-4100 FAX (805) 667-4379Elkhart, IndianaMIDWEST SALES DIRECTORCHUCK LASLEYNATIONAL ADVERTISING SALESTACY HENDERSHOTNATIONAL ADVERTISING SALESLOU CICIRELLI2300 MIDDLEBURY STREETT, ELKHARTT, IN 46516 TEL (574) 295-7820 FAX (574) 522-0418Seattle, WashingtonNATIONAL ADVERTISING SALESSCOTT OAKESS, JOHN MARCIANO1818 WESTLAKE AVENUE N, #420SEATTLEE, WA 98109 TEL (206) 283-9545 FAX (206) 283-9571Detroit, MichiganCROMPTON HOLDINGSSCOTT CROMPTON2031 FERNWAY DRIVEMONTGOMERYY, AL 36111 TEL (334) 613-2040 FAX (334) 356-7740TRAILER LIFE IS A REGISTERED TRADEMARK OFAFFINITY GROUP INCC. COPYRIGHT 2010 BY AFFINITYGROUP INCC. ALL RIGHTS RESERVED. TRAILER LIFE (USPS#454-970) IS PUBLISHED MONTHLY BY AFFINITY GROUPINCC. SUBSCRIPTION PRICEE, U.S. AND POSSESSIONSS:1 YEARR, 15.97; 2 YEARSS, 27.97. ALL OTHERCOUNTRIESS, ADD 12 PER YEAR.FOR MORE INFORMATIONN, VISIT OUR WEB SITE ATwww.trailerlife.com2010 Guide toTowing SponsorsFord Motor Company(800) 392-3673www.ford.comHensley Manufacturing Inc.(800) 410-6580www.hensleymfg.com4 2010 TRAILER LIFE Towing GuideGo To:.comCommentsContents
005-TL1002 TG Choose Wisel12/4/0912:41 PMWPage 5Weight Matters2010 TRAILER LIFE Towing Guide 5Go To:.comCommentsContents
005-TL1002 TG Choose Wisel12/4/0912:42 PMrating for the tow vehicle you plan to buy.Gross Combination Weight Rating (gcwr):The total allowable weight of the tow vehicle, thetrailer, the cargo in each, fluids and occupants.Gross Vehicle Weight Rating (gvwr): Thetotal allowable weight for the vehicle, includingfluids, options, hitch, cargo and trailer-hitchweight. The trailer’s gvwr is the total allowableweight of the trailer, fluids, occupants, optionsand cargo.Gross Axle Weight Rating (gawr): The totalallowable weight on any given individual axle.This includes the weight of the tires, wheels,brakes and the axle itself.Maximum Tow Rating: The manufacturer’sweight limit for towed loads. For conventionaltrailers, this normally includes a hitch-weightlimit as well; for fifth-wheels, the pin weight isapplied to the truck’s gvwr and its rear-axle gawr.Trailer and Tow Rig MatchupThe gvwr and gawr for all motor vehicles arelisted on the data plate, typically affixed to thedriver’s door frame, fuel door, glove box, end ofthe dashboard or other easy-to-access location. Brochures and window stickers may be inaccurate. All trailers should have a weightsticker — normally found in an interior cabinet— that lists the trailer’s Unloaded VehicleWeight (uvw), gvwr, weight added by freshwater and LP-gas and the resulting cargo carryingcapacity (ccc).In many cases, especially on older trailers,optional equipment — such as air-conditioningunits, generators and the fuel they run on —sneaks onboard after weighing, and may notbe reflected on the sticker. (And don’t forgetthe fuel-fill tanks that some SURVs offer forcampsite refueling of motorcycles and ATVs.)Recreational Vehicle Industry Association(RVIA) weight label requirements are more inclusive of dealer-added options and make itmuch easier for buyers to have access to morePage 6accurate weight figures.The gvwr figures are neither guidelines norestimates; they are limits, and there are numerous valid reasons the manufacturer arrived atthe figures given. If you think these figures are“close enough” or have a fudge-factor percentage built in, think again. Your warranty coverage, and your safety, may be at risk.The only sure-fire way to find out what yourtrailer weighs is to load it as usual for a trip andweigh it at a public scale. Without forming along line of commercial trucks waiting theirturns at the scale, get the hitch weight, axleweight and total weight. Assuming that the axleweight is below the gawr, the total is below thegvwr and the hitch weight is below the maximum given for your tow vehicle, you can thenmove on to tow-vehicle selection.When purchasing a trailer, consult theweight sticker on the unit of your choice on adealer’s lot and refer to the uvw and ccc.Estimate how much cargo you will add,being mindful of the gvwr, and use that numberwhile selecting a tow vehicle.To a lesser extent, tow-vehicle weight isvariable as well. Brochures and tow guides frequently list how much a tow vehicle weighs, butthis number generally applies to the most basicmodel in that configuration, without any options. In some cases, distinctions are made byengine, transmission, drive system (2WD or4WD/AWD) and, in other cases, by cab or bedstyles. If the dealer does not have a vehicleequipped as you want that is available to weigh,or cannot provide option weights, you can formrough estimates — but exact figures are theonly way to be certain.Bigger engines add weight, diesels more sobecause they come with additional accessories(up to 700 pounds more than the standard gasengine is common). Add up to 175 pounds foran optional transmission, about 400 poundsfor 4WD and a bit less than 300 pounds forlonger beds. Then add other options like luxury-trim levels, as all those electric motors addup. The towing package and hitch could addanother 100 pounds, and larger wheels andtires can also have an effect.Following is how to calculate the realistictowing capacity of the vehicle that interests you.For example, consider a fictional one-tonlongbed, diesel, extended-cab, 2WD, singlerear-wheel pickup set up for towing. We’ll arbitrarily assign it a gvwr of 9,900 pounds, a frontgawr of 5,000 pounds, a rear gawr of 6,824pounds, a gcwr of 23,000 pounds and a quoted maximum tow rating of 17,000 pounds.As is often the case in single-rear-wheel6 2010 TRAILER LIFE Towing GuideGo To:.comCommentsContents
005-TL1002 TG Choose Wisel12/4/0912:42 PMtrucks, the rear axle’s gawr on this truck is derived from each tire’s maximum load of 3,412pounds. Pickups such as this normally start atmore than 6,000 pounds, and with a diesel, automatic and nice trim, figure that with a full tankof fuel and hitch, this unit weighs 7,000pounds. If we add two “standard-size” people(154 pounds each), a few tools and somecargo, it weighs 7,500 pounds. That is split to4,000 pounds on the front axle, and 3,500pounds on the rear axle.The first thing you should have noticed isthat the maximum tow rating cannot apply withthe truck fully loaded because gcwr (23,000)minus gvwr (9,900) leaves 13,100 pounds —about 4,000 pounds less than quoted towingability. After adding options and people to theexample truck, and subtracting that value(7,500) from gcwr (23,000), the effectiveworking tow rating of the truck becomes15,500 pounds, about 1,500 pounds less thanthe truck’s quoted maximum towing rating.However, you have yet to check all the numbers and verify that a 15,500-pound trailer willwork. If that trailer is a fifth-wheel and has 20percent of its weight on the pin, that adds 3,100pounds to the back of the truck. This wouldmake the truck overweight — its 7,500-poundready-to-roll weight plus the 3,100 pounds onthe pin equals 10,600 pounds — 700 poundsPage 7more than the truck’s gvwr, and just 224 poundsshy of the rear-axle limit of 6,824 pounds.SUVs and other non-pickup tow rigs cannotescape scrutiny. The vehicle’s loaded weight,with the anticipated load of passengersaboard, must be subtracted from the gcwr todetermine the realistic tow rating.Other Factors to ConsiderThe tow-ratings chart lists vehicle-towingmaximums segregated by engine, cab style,drive and single- or dual-rear wheels as appropriate. In general, assume the maximum towrating always requires a towing package — andspecial towing equipment (see “What’s In aTowing Package” on page 36) — and the highest numerical axle ratio offered, and as the example shows, maximums can be confusing.You can do your own estimates by starting withthe information given and keeping the following generalizations in mind.Transmission: For the majority of vehicles,automatic transmissions offer the higher towratings when they vary by transmission. Onheavy-duty (HD) models, the difference maybe 1,000 pounds or less, and on lighter-dutyvehicles, a manual tranny might rate a 2,000pound lower tow rating. Exceptions includehigh-output engines that are available only withmanual gearboxes, vehicles where the manual2010 TRAILER LIFE Towing Guide 7Go To:.comCommentsContents
005-TL1002 TG Choose Wisel12/4/0912:42 PMtransmission weighs more than the automaticand transmissions in vehicles designed forhigh performance and not towing.Axle Ratio: Lower gearing (the numerically higher ratios, e.g. 4.10:1, 4.56:1, as opposedto 3.55:1, 3.73:1), typically produces greatertow ratings because of greater torque multiplication. There is a wide variance in the axleratio’s effect on the tow rating, with somediesel-powered pickups varying only a fewhundred pounds. On others, changing from a3.73:1 to a 4.30:1 sometimes increases thetow rating by 3,500 pounds. In the past, someratings have increased by a factor greater thanthree (from 2,000 to 7,100 pounds) simply byusing a different axle ratio. Lower gearing willalso make your vehicle accelerate quicker upto 50-55 mph. In general, a one-step drop inaxle ratio (4.10:1 to 3.73:1) on an HD pickupwill drop tow rating and gcwr by a ton.Lower gearing has an adverse effect on fueleconomy, but it’s usually not proportional to thegain in towing ability. Under the best circumstances, the difference between the highestand lowest gear ratios offered (say, 3.42:1 and4.10:1) results in a 1.5-mpg decrease in nontowing, steady state-highway cruising. In mostconditions that change is less than 1 mpg, andif you tow a relatively heavy trailer a lot, there’sno question that the lowest gearing is best.Page 8Drive System: Vehicles that drive only twowheels, be they front or rear, generally havehigher tow ratings (all other things beingequal). Even though modern 4WD and AWDsystems are quite efficient, a small amount ofparasitic loss uses up energy. More importantly,4WD systems add weight — easily up to 400pounds on some HD pickups — and thatweight frequently comes off the tow rating. Unless the gcwr and gvwr are higher, a 4WD version will probably tow a few hundred poundsless than its 2WD counterpart.Towing Package: If you can order a towing package, do so. Not only is it usually required to get the top tow rating, but the contents rarely can be duplicated for the originalcost — and it will add to resale value. You canplainly see the hitch receiver or electrical receptacle, but there are often other changes tothe wiring system (including up-rated wire andfuses), alternator, battery, cooling system,power steering and lubricants.Bed Length/Style: If there’s a difference,a longbed truck may rate slightly lower in towcapacity — about 150-250 pounds — becausethe longer bed adds weight. In other cases thereis no change because the longer wheelbase isbeneficial. Note that the more “styled” beds marketed under a variety of names typically areheavier than conventional slab-sided beds, and8 2010 TRAILER LIFE Towing GuideGo To:.comCommentsContents
005-TL1002 TG Choose Wisel12/4/0912:42 PMthat cab-and-chassis figures do not reflect anybed unless otherwise noted. A steel bed for amedium-duty cab-and-chassis could quickly eatup an entire ton of its gcwr.Single or Dual Rear Wheels: Most people assume that a dually pickup will have ahigher tow rating than a single-rear wheel unit,but this is not always so. In many cases thegcwr is limited by factors other than the number of rear wheels and does not change, and inthose cases the weight of the wider axle, bigger brakes and two more tires and wheels issubtracted from the gcwr. The dually no doubtprovides a more stable towing platform for theheavier trailers, although not always with thehighest tow rating. A dually will have a highergvwr because the dual-wheel rear axle mighthave a 10,000-pound gawr, for example, compared to the single-rear-wheel truck’s 6,824pound gawr. Gawr is not always an exact calculation of the tire capacity times the number oftires. A dually-equipped truck will be better forhauling a heavy slide-in truck camper and handling heavy fifth-wheel pin weights because ofthe weight concentrated on the rear axle ascompared to the average trailer’s hitch weight.Tires: Wheel sizes continue to grow commensurate with their popularity, with some towvehicles offering 20-inch wheels as factory options. However, using a larger wheel and lower-Page 9profile tire means a smaller air cushion and lowertire sidewall, to the extent that tow ratings generally drop whenever the wheel size increases —and ride comfort can be compromised. Read thefine print on the packaging carefully.Practical ApplicationBefore purchasing any vehicle for towing,ensure that the equipment required is availablefor your vehicle. You may find that the new-kidon-the-block is a very capable tow vehicle, butno one makes a fifth-wheel hitch for it. Fordhas remedied this quandary with an optionalfactory-installed fifth-wheel saddle on 2011Super Duty trucks, but other manufacturershave not. Also beware of hitch-ball and receiver ratings, as some trucks are rated for heavierloads than any easily found hardware can handle, and therefore may require special-orderparts. Also keep in mind that the powertrainsused in some vehicles may not be available ineach of the 50 states or Canada.Before purchasing a vehicle, we suggest youacquire the manufacturer’s comprehensive towing guide, available online or at dealerships. Besure to read the fine print because in manycases the maximum rating may apply only to oneparticular version and be for a fifth-wheel trailer;many larger pickups may have their actual towrating limited by the hitch and hardware. q2010 TRAILER LIFE Towing Guide 9Go To:.comCommentsContents
010-TL1002 TG Towing 201012/4/0912:40 PMPage 10IFord Motor CompanyTRAILER LIFEGo To:.comCommentsContents
010-TL1002 TG Towing 201012/4/0912:40 PMPage 11Ford F-250 Super DutyFord FlexFord F-150 SVT RaptorLincoln MKTTRAILER LIFEGo To:.comCommentsContents
010-TL1002 TG Towing 201012/4/0912:40 PMflares, “digital mud” graphics, cast-aluminumrunning boards and unique “brick wall” grill.The Ford Flex is now offered with a 3.5-literEcoBoost V-6 engine that delivers 355 hp and350 lb-ft of torque. The all-wheel-drive modelgets 16 mpg city and 22 mpg highway, the sameas the base all-wheel-drive Flex. Active ParkAssist, a paddle-shift six-speed automatic transmission, a 4,500-pound tow capacity and standardTrailer Sway Control are other useful additions.The Lincoln MKT is all-new for this year,and is a luxury variant of the Flex. Offered witheither a 268-hp 3.7-liter V-6 or the 355-hp3.5-liter EcoBoost, the MKT is loaded withconvenience and luxury features such as aPanoramic Vista Roof, six or seven-passengerseating, adaptive cruise control, adaptive headlamps, rain-sensing wipers, blind-spot information system, a reverse camera system, LincolnSYNC and an available Navigation Package.Chrysler/Dodge/JeepJeep Grand CherokeeDodge Ram Crew CabThe big news from the Pentastar people isthe new Dodge Ram Heavy Duty pickup series.Borrowing many styling cues from the newlyrevised 1500 series light-duty trucks, the new2500 and 3500 HD trucks will be available forthe first time with a true Crew Cab. You mayrecall that Quad Cab models have smaller reardoors, while the Mega Cab is the stretch limo ofthe truck world. The new Dodge Crew Cab willreplace the Quad Cab, but regular and MegaCab models will remain. Two cargo box sizes(6-foot 4-inch and 8-foot) and single/dual rearwheel configurations will be offered.The venerable 6.7-liter Cummins I-6 turbodiesel soldiers on with a choice of either a G56six-speed manual transmission with ultra-lowfirst gear, or a 68RFE six-speed automatic anda standard exhaust brake. The base 5.7-literPage 12Hemi gasoline V-8 gets several improvements,including variable valve timing, higher compression, an “active” intake manifold (variable intakerunners) improved cylinder heads and freeflowing exhaust. It is backed by a five-speedautomatic transmission with Electronic RangeSelect and tow/haul mode. Moreover, the HDmodels will boast an integrated trailer brakecontrol, improved suspension, an available towrating of 18,500 pounds, and a gross combinedweight rating (gcwr) of up to 25,400 pounds.The Ram Power Wagon also makes its return,armed with electric locking differentials, electronic disconnecting sway bar (for improvedsuspension articulation off road), Bilsteinshocks, 32-inch BFG tires, skid plate, anavailable 4.56:1 axle ratio and a custom-built12,000-pound Warn winch.The Dodge 3500/4500/5500 Chassis Cabstory is a strange one for this year; the 2010models are essentially carry-over from 2009,and still offer that year’s cab configurations(i.e. Quad Cab). But in a few months, the 2011models will arrive, sporting the new Crew Cab,new exterior styling and several other revisions.Among these are the integrated trailer brakecontroller, standard diesel exhaust brake, sixspeed manual or automatic transmission withPower Take Off (PTO) capability and a standard(diesel) gcwr of 24,000 pounds. The proven6.7-liter Dodge-Cummins engine and revised5.7-liter Hemi gas V-8 are the engine offerings.Chrysler’s Jeep division has also releaseddetails on the all-new 2011 Jeep GrandCherokee, billed as the “sweet spot of realworld capability and on-road refinement.” Tohelp achieve this goal, the 2011 Grand Cherokeewill be equipped with a Quadra Lift air-suspensionsystem that provides height control and liftsthe vehicle 41 2 inches for a maximum rideheight of 11 inches. Three four-wheel-drivesystems, a new Selec-Terrain with five terrainsettings and a new flexible fuel 3.6-liter V-6with variable valve timing (VVT) and 280 hpround out changes to the driveline. The 5.7-literHemi will remain, with VVT and 360 hp.The Chrysler Aspen and Dodge Durangohave been discontinued.General MotorsNot surprisingly, there’s not a lot to reportfrom the beleaguered General Motors, butthere is some good news. The popular ChevyEquinox has been redesigned, and it now has anew sibling, the GMC Terrain. Both vehicles arepowered by a new 2.4-liter direct-injected fourcylinder that delivers a segment-best EPA fueleconomy rating of 32 mpg on the highway. An12 2010 TRAILER LIFE Towing GuideGo To:.comCommentsContents
010-TL1002 TG Towing 201012/4/0912:41 PMPage 13SRX is an all-new design featuring a uniquechassis and the smallest V-6 engines Cadillacoffers in North America. It will be introducedwith a 3.0-liter direct injected V-6 that delivers265 hp, but a 2.8-liter turbo V-6 that churnsout an estimated 300 hp will be available bymid-2010. Both engines are backed by a sixspeed automatic transmission. The SRX isavailable in front-wheel drive, or with a new allwheel-drive system featuring an electronic limitedslip differential (ELSD). Developed in partnershipwith Haldex, the system can distribute powerfrom the front to the rear axle, as well as fromside to side across the rear axle, for the bestpossible traction.The midsize Chevy Trailblazer and GMCEnvoy as well as the medium duty Chevy Kodiakand GMC TopKick have been discontinued.Chevrolet EquinoxChevrolet SilveradoToyotaavailabl
4 2010 trailer life towing guide editorial publisher bob livingston editor kristopher bunker managing editor marleen canniff creative art director mirante almazan editorial/business office 2575 vvista del mar drivee, vventuraa, ca 93001 tel (805) 667-4100 fax (805) 667-4484 advertising ventura, california vp/national sales terry thompson business manager denielle sternburg p.o. box 8510 .
F-150 SHOWN When a trailer is connected via the trailer wiring harness, BLIS sensors in the taillamps extend the area of detection to include the length of the trailer up to 33 ft. for trailer widths of 8.5 ft. or less Trailer information must be stored in the Towing menu for BLIS to be activated when towing a trailer
The degree of a polynomial is the largest power of xwith a non-zero coe cient, i.e. deg Xd i 0 a ix i! d if a d6 0 : If f(x) Pd i 0 a ixiof degree d, we say that fis monic if a d 1. The leading coe cient of f(x) is the coe cient of xd for d deg(f) and the constant coe cient is the coe cient of x0. For example, take R R.
For F-250/F-350 SRW models, F-350 trailer weights are shown. F-250 trailer weights are within 100 pounds. Check with your sales consultant. Trailer tongue load weight should be 10-15% of total loaded trailer weight. Make sure vehicle payload (reduced by option weight) will accommodate trailer tongue load weight and
Cable Splicer Trailer.The cable splicer trailer repair of transmission lines. The two chests in- figs. 1-5, 1-6) is a single-purpose trailer designed stalled in the body contain tools and equipment. A 'or use by field personnel in the installation or paulin is provided for the trailer. Figure 1-5. Top view, M716.
3. Click the template you want to use for your trailer. A blue border appears around the template, indicating that it's selected. 4. Click Create. 5. In the Event pop-up menu, choose the event you want to save the trailer to, and type a name for the trailer in the Name field. 6. Click OK. A tabbed interface appears, and the trailer is added to
the U-MAD Trailer Mounted Attenuator. Proper installation and operation of the U-MAD Trailer is essential to assure maximum performance. Take the time to review this entire manual thor-oughly prior to installing and/or operating the U-MAD Trailer. The U-MAD Trailer Mounted Attenuator is a highly engineered safety device made up of a
U-MAD Trailer Mounted Attenuator. Proper installa-tion and operation of the U-MAD Trailer is essential to assure maximum performance. Take the time to review this entire manual thoroughly prior to install-ing and/or operating the U-MAD Trailer. The U-MAD Trailer Mounted Attenuator is a highly engineered safety device made up of a relatively
Vorteq Trailer TMA with Integral Arrowboard TL-3 NCHRP 350 Trailer 9,920 lbs. MIN CC-104A . 20,000 lbs. MAX CC-103A U-MAD Trailer Mounted Attenuator Impact Absorption TL-3 NCHRP 350 Trailer 18,850 lbs. MIN 20,830 lbs. MAX CC-99 TTMA-200 Gregory TL-3 MASH Trailer 10,000 lbs. MIN CC-152 Delaware Department of Transportation Approved Products .
