15” wheels and drop spindles - The 1947 - Present Chevrolet & GMC Truck Message Board Network

SCOTI · 12-08-2023, 05:48 PM

Wheels w/deeper back-spacing typically require trimming the lower A-arm 'rain-gutter' near the BJ location. I recall 4" being the max BS allowed so you should be fine. At worst, some slight trimming is usually all that's required.

Some will state that it's only when using smaller diameter wheels & there won't be issues w/larger diameter stuff (17"+) but that is not a black/white statement as it all depends on the amount of back-spacing. I ran 18x8 wheels up front w/5.25"BS & had to trim the rain-gutter. The larger diameter wheels just extend the distance of the rain-gutter area that needs to be trimmed.

12-08-2023, 05:48 PM	#5
SCOTI Registered User Join Date: Apr 2001 Location: DALLAS,TX Posts: 21,931	Re: 15” wheels and drop spindles Wheels w/deeper back-spacing typically require trimming the lower A-arm 'rain-gutter' near the BJ location. I recall 4" being the max BS allowed so you should be fine. At worst, some slight trimming is usually all that's required. Some will state that it's only when using smaller diameter wheels & there won't be issues w/larger diameter stuff (17"+) but that is not a black/white statement as it all depends on the amount of back-spacing. I ran 18x8 wheels up front w/5.25"BS & had to trim the rain-gutter. The larger diameter wheels just extend the distance of the rain-gutter area that needs to be trimmed. __________________ 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.*



Register or Log In To remove these advertisements.

Register or Log In To remove these advertisements.