That's about a 1/2" (maybe a little less) more back spacing than a '69 can handle without some kind of mods. Relocated shocks and mini tubs in the back and removing the inner fender in the front. The '69 actually has the deepest of the 1st gen wheel wells so the same would be needed on the on '67 & 8s. There's the possibility of using a rearend that is wider at the axle flanges that teh factory 1st gen rear and having the rears fit too... Thin wheel spacers are a possibility too with the right stance and a fender lip rolled under.Originally posted by dennis68:
In the link I provided the fronts which are 8" wide run 5" b/s and the rears which are 9.5" wide run 6" b/s. I would think they would fit.
So If I were using a 70 Camaro rearend which is .5" wider on both sides, I should have no problem with the rears, right? I've bolted the 5.5" bspaced 17x9.5 Centerlines off the front of my Chevelle on the rear of my Camaro with the stock rearend and had .5" clearance on the inner tub. I was going to use TTII's on my car, but I like the looks of the Bimmer wheels. Do you think a corvette center cap would fit in place of the BMW insignia? And as far as the 5 on 120mm bolt circle actually being 5 on 4.72, and gm is 5 on 4.75, there is a difference of .030". If the size is off by .015 per hole on two holes spaced across from each other when you initially tighten in the 5 star sequence, and your using tapered lug nuts, would the first nut in the sequence not pull the wheel on center to it, causing a .03 off center wheel? Would this cause vibrations at high speeds?Originally posted by DjD:
I took Denny's back spacing as correct... 13mm is .51" so an 8" wheel with a .51" positive offset would have a 4.51" back spacing.
.98" is correct for the 25mm positive offset and on a 9.5" wide wheel would make the backspacing 5.73".
The lugs should always be drawn down evenly, you should not have any 1 lug torqued before all the others are at least snug. I always bring mine down in steps; snug, 25, 45, 65, 95, 105. Can't be too careful with Al wheels.If the size is off by .015 per hole on two holes spaced across from each other when you initially tighten in the 5 star sequence, and your using tapered lug nuts, would the first nut in the sequence not pull the wheel on center to it, causing a .03 off center wheel? Would this cause vibrations at high speeds?