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Old 09-25-2016, 01:59 PM   #1
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Join Date: Nov 2010
Location: Vero Beach, FL
Posts: 261
Tow vehicle WB question

I'm considering moving to a new higher HP tow vehicle.
The options are a WB of 116"or 130".
Same engine on both.
Is there a significant, noticeable advantage to either?

What might be the pros and cons of each. Thanks, JR

2014 Keystone Bullet 22RBPR
2005 GMC Envoy Denali
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Old 09-25-2016, 06:00 PM   #2
Join Date: Dec 2012
Location: Swoope, VA
Posts: 94
The longer wheel base will be better. Better ride, not pushed around as much by the trailer, easier to maneuver the trailer when backing up.

2005 Chevy CC Dually D/A, 2003 Fleetwood 11X truck camper, 1997 Larson 206SEI boat
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Old 09-25-2016, 07:33 PM   #3
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Join Date: Jun 2011
Location: Midland County, Texas
Posts: 2,751
2013 Keystone Bullet Premier Ultra Light 22RBPR
GVWR (lbs/kgs) 6500 / 2948.4
Yeah, your Jimmy is maxed out when that trailer is wet and loaded for a camping trip.

The shorter wheelbase will weigh less than the longer wheelbase, so it will require slightly less power to climb hills and mountain passes when towing. But that's minor stuff. Your best bet is to replace the ring gear and pinion in your differential(s) with shorter legs. I would go for at least 25% gain in axle ratio to give you adequate towing power. IOW, if your axle ratio is now 3.30. then 3.30 + 25% would be 4.125. 4.10 and 4.11 are cpmmonally available gear ratios, so that's what I'd want.

If you're buying a new tow vehicle, then get it with enough power and torque to get the job done, along with the heaviest duty axle ratio they offer.
Grumpy ole man with over 50 years towing experience. Now my heaviest trailer is a 7,000-pound enclosed cargo trailer, RV is a 5,600 pound Skyline Nomad Joey 196S, and my tow vehicle is a 2012 F-150 EcoBoost SuperCrew.
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