Dropped spindle question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

ol rob · 01-03-2015, 07:22 AM

What is the lowest drop spindle I can use and still use aftermarket aluminum 15" wheels? My truck has lowering spindles on it and there is very little clearance between the lower a-arm and the steel ralleys on it now. I want to buy some new wheels, but may have to replace the spindles as well. Call me old school, but I want 15" wheels.
Ol Rob

**Ironangel** · 01-03-2015, 09:00 AM

Should pose no problems...I think 2-1/2" is the max drop spindle out there. My 15x8's with BFG 60's clear just fine. Might run into fender and fender well clearance issues depending on tire choice. My 72 clears the control arms, stop to stop with no issues. Wheel width and backspacing may pose problems if you go too deep or wide.

ol rob · 01-03-2015, 06:48 PM

Thanks. 15x8is my target front rim size.

BugzC10 · 01-03-2015, 07:56 PM

Backing spacing will be 4" max. Even with 4" BS you may still get the rim rubbing the lower control arm when making a tight turn if the bump stops have been removed.

01-03-2015, 07:22 AM	#1
ol rob Registered User Join Date: Dec 2014 Location: Tifton, Ga Posts: 14	Dropped spindle question What is the lowest drop spindle I can use and still use aftermarket aluminum 15" wheels? My truck has lowering spindles on it and there is very little clearance between the lower a-arm and the steel ralleys on it now. I want to buy some new wheels, but may have to replace the spindles as well. Call me old school, but I want 15" wheels. Ol Rob

01-03-2015, 09:00 AM	#2
Ironangel Senior Member Join Date: Feb 2010 Location: Falls City, Nebraska "100 Miles From Nowhere" Posts: 2,219	Re: Dropped spindle question Should pose no problems...I think 2-1/2" is the max drop spindle out there. My 15x8's with BFG 60's clear just fine. Might run into fender and fender well clearance issues depending on tire choice. My 72 clears the control arms, stop to stop with no issues. Wheel width and backspacing may pose problems if you go too deep or wide. __________________ Michael of the clan Hill, "Two Seventy Two's" 71 1-ton Dually 350 4-Speed 71 C/50 Grain Truck, 350 Split-Axle 4-Speed 02 3/4 ton Express 14 Indian Chief Vintage 1952 Ford 8N, "Only Ford Allowed On The Property" "Be American, Buy American"

01-03-2015, 06:48 PM	#3
ol rob Registered User Join Date: Dec 2014 Location: Tifton, Ga Posts: 14	Re: Dropped spindle question Thanks. 15x8is my target front rim size.

01-03-2015, 07:56 PM	#4
BugzC10 Registered User Join Date: Oct 2012 Location: Green Valley Arizona Posts: 1,351	Re: Dropped spindle question Backing spacing will be 4" max. Even with 4" BS you may still get the rim rubbing the lower control arm when making a tight turn if the bump stops have been removed. __________________ 1970 C10 Short Stepper with 71/72 front clip.



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