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**Boog** · 05-04-2017, 03:12 PM

A 2 1/2" spindle drop will cause the wheel to rub the lower control arms in turns when using 15 x 8" wheels with 4" back space. A 7" wheel may not rub, i'm not sure.
We gain the necessary clearance to run 15x8 wheels by grinding the lca cup/channel around the ball joint area and sometimes the outside of the tie rod mount area of the spindle. I did this to my drop spindles and used no spacers. Lots of threads pertaining to this in this forum and suspension forum.
Also the larger diameter rims are less likely to rub since the rim lip is further away from the lca.

05-04-2017, 03:12 PM	#3
Boog laying low Join Date: Mar 2001 Location: Searcy, Ark. USA Posts: 13,701	Re: 15" Wheels & Drop Spindles A 2 1/2" spindle drop will cause the wheel to rub the lower control arms in turns when using 15 x 8" wheels with 4" back space. A 7" wheel may not rub, i'm not sure. We gain the necessary clearance to run 15x8 wheels by grinding the lca cup/channel around the ball joint area and sometimes the outside of the tie rod mount area of the spindle. I did this to my drop spindles and used no spacers. Lots of threads pertaining to this in this forum and suspension forum. Also the larger diameter rims are less likely to rub since the rim lip is further away from the lca. __________________ Boog 69 Chevy stepside, 358/T350, 4.11 posi, 4.5/4 drop, rallys, poboy driver primer is finer 91 Chevy sportside, Tahoe, Yukon & GMC Crewcab All GM..'nuff said. I stand for the flag and kneel at the cross Last edited by Boog; 05-04-2017 at 03:19 PM.