[Kottwitz]

In another thread, someone posted a link to get your build sheet. I did, and got the info back, and what I have is a 2000 quad cab 4.7L with 3.55 rare axle ratio. I have an airraid intake, reprogrammed the computer with a programmer. I did replace the stock wheels with a set of 20" wheels and 275 75 r20 tires. How will this affect my towing?

The reason I'm asking is I am looking at getting a 21 foot camper with a single slide out, and I want to make sure that I'm not looking at "too much camper".

Thanks in advace,
Mark

 

[cbr600rx7]

The larger tires are definitely going to hurt you. You will feel it more since you have 3.55 gears. I am also assuming you current wheel/tire combo is on the heavy side. Your best bet is to re gear or throw stock wheels on for towing. Things over 5000lbs and 19 feet is very possible with our trucks but only when properly equipped.

 

[hskrRT]

Only thing you really need to be concerned with for towing is tongue weight. Make sure you have the proper sized hitch, and get a camper with trailer brakes. As long as you stay within the load range on the tires, the wheel/tire combo shouldn't effect anything other than ride quality.

 

[cbr600rx7]

Only thing you really need to be concerned with for towing is tongue weight. Make sure you have the proper sized hitch, and get a camper with trailer brakes. As long as you stay within the load range on the tires, the wheel/tire combo shouldn't effect anything other than ride quality.

I would agree if it was a stock truck. But once you start adding lifts and larger tires it starts to degrade the trucks handling and braking ability. The larger tires will also make the truck run at a lower RPM at any given speed and that in its self can cause issues.

 

[DRBDakota]

OK, going with logic and a little engineering here, no experience. He has gone from a 30" tire to a 36" tire. 3" increase in moment arm measured from the center of the axle. Any change upward in tire diameter raises the overall drive ratio(lowers the effective axle ratio). Speedometer reads low since each rotation of the tire goes a little farther. Taller ratio, less torque, puts more on the tranny. Engine will also run lower RPM's, def have to override OD. As mentioned earlier, this will also put more on the brakes. Did you upgrade the rotor size with the taller tires? Rear drums 2 or 2.5". Now whether all this fits within the allowances and tolerances built in by the factory engineers, I don't know. I do think the guy that recommended a set of standard "towing tires" is probably spot on with that recommendation. Def get the brake controller and electric brakes on the trailer. Standard tires will also drop the hitch ball to a more reasonable height without a drop ball hitch mount.

 

[Primus]

Be aware that aftermarket wheel manufacturers have to rate the capacity of each wheel and if you are not careful, you could end getting into a wreck because the wheel fell apart while driving. My MB Wheels Offroad 17" have a rated capacity of 2500lbs. each, so 10000lbs. GTW. If I exceed that by more than 100lbs., which is entirely possible considering I have the V8 and a 4x4 quad cab, then bad things can happen if I pull anything over 4000lbs. trailer weight.