What's the widest rim for the rear without modifications? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ChevyDude · 07-02-2008, 09:13 AM

Hey Guys...I am running some new CenterLine Qualifiers in old school size 15x8 in the front and have been wondering how wide I can go in the rear without modifiying the differential or wheel tubs in the bed. I want to run a 15x12. CenterLine will make them with whatever back spacing you tell them. I DO want them to fit under the fleetside bed. If I have to widen the wheel tubs...I can do that. Don't want to shorten the diff and axels.

Thoughts?

kelsfine69 · 07-02-2008, 09:40 AM

I added 3 " to a set of Ralleys. 15x12s, Offset all to the outside and they fit nice, no mods. I have pics on here somewhere I posted awhile back.

here ya go

http://67-72chevytrucks.com/vboard/s...d.php?t=293175

lowriden58 · 07-02-2008, 09:54 AM

if your willing to widen the wheel tubs you can fit up to a 15x15 rim with the correct b.s. and offset.

no shortening of the axle required thats the beauty of these trucks

EDIT: thats if you have coil spring rear. not sure on leaf

ChevyDude · 07-02-2008, 10:09 AM

It's coil...cool then ...I'll figure out what BS I need and get the 15x12's!

07-02-2008, 09:13 AM	#1
ChevyDude Senior Member Join Date: Jun 2003 Location: Westminster, CO Posts: 3,071	What's the widest rim for the rear without modifications? Hey Guys...I am running some new CenterLine Qualifiers in old school size 15x8 in the front and have been wondering how wide I can go in the rear without modifiying the differential or wheel tubs in the bed. I want to run a 15x12. CenterLine will make them with whatever back spacing you tell them. I DO want them to fit under the fleetside bed. If I have to widen the wheel tubs...I can do that. Don't want to shorten the diff and axels. Thoughts? __________________ Alex 1971 Lil' Red 350 SBC 700R4 Last edited by ChevyDude; 07-02-2008 at 09:21 AM.

07-02-2008, 09:40 AM	#2
kelsfine69 18 Till I Die Join Date: Mar 2005 Location: Alberta, Canada Posts: 1,522	Re: What's the widest rim for the rear without modifications? I added 3 " to a set of Ralleys. 15x12s, Offset all to the outside and they fit nice, no mods. I have pics on here somewhere I posted awhile back. here ya go http://67-72chevytrucks.com/vboard/s...d.php?t=293175 __________________ 2011 GMC Acadia 1969 GMC BBC LS7 2007 GMC Crew Duramax 1987 Camaro Iroc 350 Tuned Port Injection 42000Km 1987 Chevrolet Silverado 350 TBI 1987 Chevrolet Silverado 350 TBI(yes 2) Take me drunk, I'm too home... Last edited by kelsfine69; 07-02-2008 at 09:42 AM.

07-02-2008, 09:54 AM	#3
lowriden58 Registered User Join Date: Jan 2008 Location: Chesapeake Beach, MD Posts: 812	Re: What's the widest rim for the rear without modifications? if your willing to widen the wheel tubs you can fit up to a 15x15 rim with the correct b.s. and offset. no shortening of the axle required thats the beauty of these trucks EDIT: thats if you have coil spring rear. not sure on leaf __________________ 71 cheyenne lwb 300rwhp best 1/4 time so far 12.8 @103 http://i195.photobucket.com/albums/z...en58/001-2.jpg Last edited by lowriden58; 07-02-2008 at 09:55 AM.

07-02-2008, 10:09 AM	#4
ChevyDude Senior Member Join Date: Jun 2003 Location: Westminster, CO Posts: 3,071	Re: What's the widest rim for the rear without modifications? It's coil...cool then ...I'll figure out what BS I need and get the 15x12's! __________________ Alex 1971 Lil' Red 350 SBC 700R4



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