Wanting to know best backspacing for running 37"s!

booger30 · 10-09-2008, 09:20 AM

I have a 2500 with a 6 inch lift and I plan to run 37's soon. I plan on going with an 18x9 wheel but would love to know what the best backspacing would be for the least amount of rub!! Thanks!!

Pooter · 10-09-2008, 09:29 AM

Try to stick to as close to stock as possible.
I know its kind of hard, since most aftermarket wheels are 4.5" backspacing, but try to be 5.25" to 6".

Im running 17x9 XD Hoss wheels with 5.71" backspacing and its perfect, no rubbing on the control arms anymore(at full lock, with the stock wheels) and not even close to rubbing the fender up front. Im only running 35s right now, but I ran 37s on stock wheels and the only rub I had was at full lock on the control arms(not bad, but annoying)

__________________
'07 5.9 Mega Cab 2wd/G56
Smarty, Green CAI/Amsoil filter, Guages, 5" TBE, 2.5" Drop Shackles, MyGig Nav

joelliott · 10-10-2008, 01:56 AM

as stated above, stay near the 5" backspacing. I had a similar 6" tuff country and 37x12.50 tires on 20x10 wheels with 4.5" bs. I rubbed on the fender corner. had to do a little trimming to clear. So you having a 9" wheel with a 5" bs would be perfect.

Joe E.

__________________
06' Dodge Ram 2500 Cummins 4x4 9"lift 38.5"tires
Joe E.

booger30 · 10-10-2008, 08:39 AM

OK. Thanks guys. Thats what I was hoping. I would rather stick with a 10" wide wheel but had heard that 9" would work better so I guess thats what I'll do. Thanks again!!

schloe · 10-10-2008, 04:52 PM

Quote:

Originally Posted by Pooter

Try to stick to as close to stock as possible.
I know its kind of hard, since most aftermarket wheels are 4.5" backspacing, but try to be 5.25" to 6".

Im running 17x9 XD Hoss wheels with 5.71" backspacing and its perfect, no rubbing on the control arms anymore(at full lock, with the stock wheels) and not even close to rubbing the fender up front. Im only running 35s right now, but I ran 37s on stock wheels and the only rub I had was at full lock on the control arms(not bad, but annoying)

Do you have a picture of your truck from the back looking down the side? I'd like to see what the 5.71" wheels look like (how much they stick out).

__________________
2008 2500 6.7L, G56, 4x4, quad cab, short bed - 5" Expandit TBE w/ muffler, S&B intake, Shibby EGR & cooler delete, Valair 12.25" ceramic dual disk, Smarty 67, EV2 EGT gauge.

10-09-2008, 09:20 AM	#1 (permalink)
booger30 Cummins Fan Join Date: Oct 2007 Location: Springfield, MO Posts: 38 Thanks: 0 Thanked 0 Times in 0 Posts booger30's Truck Pics	Wanting to know best backspacing for running 37"s! I have a 2500 with a 6 inch lift and I plan to run 37's soon. I plan on going with an 18x9 wheel but would love to know what the best backspacing would be for the least amount of rub!! Thanks!!

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode

Remove Advertisements Sponsored Links
Dodge Cummins Diesel Forum Advertisement

10-09-2008, 09:29 AM	#2 (permalink)
Pooter Diesel Freak Join Date: Jun 2007 Location: DFW, TX Posts: 945 Thanks: 6 Thanked 17 Times in 17 Posts Pooter's Truck Pics	Try to stick to as close to stock as possible. I know its kind of hard, since most aftermarket wheels are 4.5" backspacing, but try to be 5.25" to 6". Im running 17x9 XD Hoss wheels with 5.71" backspacing and its perfect, no rubbing on the control arms anymore(at full lock, with the stock wheels) and not even close to rubbing the fender up front. Im only running 35s right now, but I ran 37s on stock wheels and the only rub I had was at full lock on the control arms(not bad, but annoying) __________________ '07 5.9 Mega Cab 2wd/G56 Smarty, Green CAI/Amsoil filter, Guages, 5" TBE, 2.5" Drop Shackles, MyGig Nav

10-10-2008, 01:56 AM	#3 (permalink)
joelliott Cummins Nut Join Date: May 2006 Location: LaBelle, FL Posts: 475 Thanks: 0 Thanked 0 Times in 0 Posts joelliott's Truck Pics	as stated above, stay near the 5" backspacing. I had a similar 6" tuff country and 37x12.50 tires on 20x10 wheels with 4.5" bs. I rubbed on the fender corner. had to do a little trimming to clear. So you having a 9" wheel with a 5" bs would be perfect. Joe E. __________________ 06' Dodge Ram 2500 Cummins 4x4 9"lift 38.5"tires Joe E.

10-10-2008, 08:39 AM	#4 (permalink)
booger30 Cummins Fan Join Date: Oct 2007 Location: Springfield, MO Posts: 38 Thanks: 0 Thanked 0 Times in 0 Posts booger30's Truck Pics	OK. Thanks guys. Thats what I was hoping. I would rather stick with a 10" wide wheel but had heard that 9" would work better so I guess thats what I'll do. Thanks again!!