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Rancho lift wheel fitment question

alrock

alrock

El Diablo
Staff member
Messages
10,447
Location
Scottsdale
Alright, trying to figure out a solution here. Newly installed Rancho lift and currently on stock 16" rims with 315-75/16 tires. 1.5" spacers are not sufficient as the tire is still rubbing. 1.75" might clear, 2" may be necessary.

So, two likely solutions: 2" spacers, or different 16" wheels. (3rd solution of 1" spacers with different wheels is a distant third option, but less desirable at this time).

Any leads on good 2" spacers that are available without a multi-week lead time?

Any suggestions on wheel offset/backspacing required and/or recommended 16" wheels?
 
06 H3

06 H3

a.k.a. "The Jackal"
Messages
9,352
Location
Meridian, ID
I ran 1.75in spacers from Motorsport tech. They probably have a decent lead time but are hub centric and top notch in terms of quality.

I think Torres has them. Idk if he is still using them or ditched em. If he did, maybe he can sell them to you.
 
Alpha X

Alpha X

Well-Known Member
Messages
411
Location
The Motor City
1.75" will clear. I have BORA aluminum spacers from Motorsport Tech on my truck with Rancho lift and 315/75R16 tires. Expensive, and somewhat of a lead time, but made in USA. If I bought them again, I might consider 2.0" for a little more clearance between tire and knuckle/UCA, but I have not had any issues with 1.75" spacer while wheeling or expressway driving. I believe others here also run 1.75" spacers with stock wheels or Hutchinsons. If you can manage the lead time, I'd suggest these:


BORA Spacers for Hummer H3:
https://www.motorsport-tech.com/bora.html
 
Last edited:
H3Hummer

H3Hummer

Well-Known Member
Messages
514
Location
LUXEMBOURG in EU
I just deleted the front Sway bar for many years now, no more rubbing, no spacers need, no problems at all and mor flex off road :wink:
 
Backporch73

Backporch73

Well-Known Member
Messages
47
Location
Phoenix, AZ
Another great question is where did you happen to find a Rancho lift lol? I've all but given up and starting to look at an SAS...but id rather the Rancho....
 
Romeo

Romeo

Well-Known Member
Messages
166
Location
New York City
I personally would suggest different wheels with the correct backspacing and eliminate the need for spacers. When I first had my Rancho lift installed I ran spacers until my new wheels arrived and after a wheeling trip at Rausch Creek, on the way home I felt like something was off. As I was pulling over my wheel was falling off and ever since then I've been scared and will avoid using spacers at all cost. I am running KMC XD wheels (not sure on the specific model but can look it up if you're interested) 16" with 4.5 backspacing and BFG KO2 37" tires.

Sent from my ONEPLUS A6013 using Tapatalk
 
4speedfunk

4speedfunk

Well-Known Member
Messages
4,212
Location
Tardville
I run 17”x9” Eagle Alloys with -11 offset. This translates to approximately 4.5” backspacing…essentially the wheel is shifted 1/4” outboard from center. This size/offset works well with the Rancho or SAS (Dana 44).

If shopping for wheels remember to check the center bore as the H3 needs a rather large one (compared to other 6-lug GM trucks). Also if you cannot find the H3 listed item in your wheel’s application, try using Toyota, Nissan, and full-size Jeep as they all share the same 6-lug bolt pattern.
 
alrock

alrock

El Diablo
Staff member
Messages
10,447
Location
Scottsdale
Thanks. I think I'm getting the same XD wheels as Romeo. Tried steelies but they wouldn't clear the caliper. Looked at readily available spacers that work for Toyota but they have a hub flange that won't work on an H3. With the 6 week lead time on those Reno spacers that was not an option.
 
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