wheel studs

Purcell Racing

Weekend Racer
Jun 10, 2011
71
0
0
Mineral Wells, Texas
Want to install longer wheel studs on my rotors. Does anyone know what knurl I need for an 80 Malibu?
 

NEW2MALIBU

Dragway Regular
Mar 5, 2007
920
0
16
idaho
What rear do you have in the car? 7/16" or 1/2" studs?
 

Purcell Racing

Weekend Racer
Thread starter
Jun 10, 2011
71
0
0
Mineral Wells, Texas
QP 9" with 1/2" x 3" studs. Would like to have the same up front as well
 

NEW2MALIBU

Dragway Regular
Mar 5, 2007
920
0
16
idaho
So I am going to assume you currently have 7/16"- 20 up front now. You can knock those studs out. Drill out the holes with a 29/64 drill bit, tap with 1/2"- 20 tap and use the ARP screw in studs. Or knock a stud out and measure it with a caliper. My stock studs up front were like .475 in. Either way it should be a pretty easy install. Summit will have all the available studs with knurling sizes listed on there web site. Hope this helped out some.
 

LS6 Tommy

MalibuRacing Junkie
May 15, 2004
15,847
1
38
North Jersey
Nope. I have 1/2-20 studs on my front rotors. Just be sure to have the rotors turned if you press in new studs...

Tommy
 

Purcell Racing

Weekend Racer
Thread starter
Jun 10, 2011
71
0
0
Mineral Wells, Texas
NEW2MALIBU said:
So I am going to assume you currently have 7/16"- 20 up front now. You can knock those studs out. Drill out the holes with a 29/64 drill bit, tap with 1/2"- 20 tap and use the ARP screw in studs. Or knock a stud out and measure it with a caliper. My stock studs up front were like .475 in. Either way it should be a pretty easy install. Summit will have all the available studs with knurling sizes listed on there web site. Hope this helped out some.

Yea summit showed three different knurl sizes. This was the reason for my question. Thanks for the help. Ill pop one out and measure it
 

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