01-07-2021, 11:47 PM
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#11
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Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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Re: 7/16 to 1/2"
This is off the Summit website.
https://help.summitracing.com/app/an...wheel-studs%3F
Drill Size for Press-In Wheel Studs
To determine what drill size you need, you will need to know:
The axle hub material, and
The wheel stud knurl diameter.
If your axle hub material is cast iron or steel, your drill size will be 0.005 in. smaller than the knurl diameter.
If your axle hub material is aluminum, your drill size will be 0.007 in. smaller than the knurl diameter.
**When installing knurled studs, use liberal amounts of a quality Assembly Lube on the threads of the stud, nut, and washer (if applicable). This will prevent damage to the threads.**
__________________
1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver
Seeing the USA in a 71 
Upstate SC GM Truck Club
2013,14 and 2016 Hot Rod Pour Tour
http://upstategmtrucks.com/
Get out and drive the truck this summer and have some fun!
It sucks not being able to hear!
LWB trucks rule, if you don't think so measure your SWB!
After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.
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