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Run to Rund · 12-29-2009, 12:09 PM

I agree that you should replace all the studs with new grade 8 or better, and torque at least 75 ft lb. A lot of cars had wimpy 7/16" studs up front and they are 40+ years old. Then the car becomes a stocker and pulls the front wheels every run. If a GM A body, you already have the perfect hole size to tap them 1/2 x 20 after you knock out the studs. An M12 lockwasher will fit into the machined recess in the back of the hub so you can use hex head bolts.

12-29-2009, 12:09 PM	#9
Run to Rund Senior Member Join Date: Sep 2007 Location: Henderson, NV Posts: 583 Likes: 8 Liked 54 Times in 27 Posts	Re: Wheel Studs I agree that you should replace all the studs with new grade 8 or better, and torque at least 75 ft lb. A lot of cars had wimpy 7/16" studs up front and they are 40+ years old. Then the car becomes a stocker and pulls the front wheels every run. If a GM A body, you already have the perfect hole size to tap them 1/2 x 20 after you knock out the studs. An M12 lockwasher will fit into the machined recess in the back of the hub so you can use hex head bolts.