The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - rim backspacing and to narrow or not to narrow

SCOTI · 03-07-2011, 12:08 PM

13" wide rear wheels does not 'require' narrowing the rear housing. It requires the proper back-spacing.

If you want a 13" wheel w/a deep lip & less back-spacing, then you need to plan on narrowing the housing (or buying a suitable swap housing). If you look around (search the net), an aftermarket 9"/12-bolt g-body rear housing would be a good choice as it's 4" narrower (2" per side) vs. a 6x-69 12-bolt housing. You might be able to find one @ a good price & just whack the existing brackets off & weld on some truck arm brackets. This is what I was searching for (for my RetroRod project) until I came across a built 12-bolt that was the right length, new gears, posi & axles for the price of an aftermarket 9" housing/axle pkg.

03-07-2011, 12:08 PM	#3
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 22,132	Re: rim backspacing and to narrow or not to narrow 13" wide rear wheels does not 'require' narrowing the rear housing. It requires the proper back-spacing. If you want a 13" wheel w/a deep lip & less back-spacing, then you need to plan on narrowing the housing (or buying a suitable swap housing). If you look around (search the net), an aftermarket 9"/12-bolt g-body rear housing would be a good choice as it's 4" narrower (2" per side) vs. a 6x-69 12-bolt housing. You might be able to find one @ a good price & just whack the existing brackets off & weld on some truck arm brackets. This is what I was searching for (for my RetroRod project) until I came across a built 12-bolt that was the right length, new gears, posi & axles for the price of an aftermarket 9" housing/axle pkg. __________________ 67SWB-B.B.RetroRod 64SWB-Recycle 89CCDually-Driver/Tow Truck 99CCSWB Driver All Fleetsides @rattlecankustoms in IG Building a small, high rpm engine with the perfect bore, stroke and rod ratio is very impressive. It's like a highly skilled Morrocan sword fighter with a Damascus Steel Scimitar..... *Cubic inches is like Indiana Jones with a cheap pistol.* Last edited by SCOTI; 03-07-2011 at 12:12 PM.