Long Front Wheel Studs

[Sandy]

What are you using to replace the short factory wheel studs ?

Need long studs with mags so there will be some studs sticking through the wheel nut as per drag race rules.

Brand and part no if possible.

 

[Anonymous]

welcome_sign.gif Wheel Studs GM: Fits most late model GM drum brake , 7/16 in.-20 X, 2 7/8 in. long, .480 knurlGM: Fits most late model GM drum brake applications, 7/16 in.-20 thread, 2 7/8 in. long, .480 in. knurl diameter, press-in style, wheel stud set by Moroso. This stud set is manufactured from high-grade SAE 8740 steel to withstand shear loads of 190,000 psi. They are designed expressly for use with thick hub racing wheels for both drag and oval track racing and have quick start dog ends for easier starting of lug nuts.


Wheel Studs GM: Fits most late model GM drum brake , 7/16 in.-20 X, 2 7/8 in. long, .480 knurl MOR46150



Wheel Studs GM: Fits most late model disc brake vehicles & early drum brake , 7/16 in.-20 X, 2 7/8 in.GM: Fits most late model disc brake vehicles and early drum brake applications, 7/16 in.-20 thread, 2 7/8 in. long, .560 in. knurl diameter, press-in style, wheel stud set by Moroso. This stud set is manufactured from high-grade SAE 8740 steel to withstand shear loads of 190,000 psi. They are designed expressly for use with thick hub racing wheels for both drag and oval track racing and have quick start dog ends for easier starting of lug nuts.

thats the .480 and the .560 knurl by moroso. Wheel Studs GM: Fits most late model disc brake vehicles & early drum brake , 7/16 in.-20 X, 2 7/8 in. MOR46160

 

[Sandy]

Thanks much for the tip.

The Moroso with the .560 knurl is exactly what I need.

 

[10secBu]

I've gone through this twice. There isn't a stud made with the right knurl diameter. One is too small, the other slightly too large. I went with the larger both times and when rpessing them in, it cracks the rotors around the studss. Current (fairly new rotors) are cracked right now.

My suggestion would be to take the rotors to a machine shop, have the holes reamed to the right size and have them threaded for 1/2-20" thread in wheel studs.

 

[Sandy]

Thanks 10secBu.

I have already ordered the Moroso studs.

Will try to ream the holes slightly so the studs can be pressed in without applying huge pressure and possibly cracking the rotor hub.

There is probably not any standard drill size that will work.

I measured a new GM stud and it was 0.555 at the knurl and the Moroso is supposed to be 0.560. Supposed to work in a 0.552 to 0.559 hole.

It doesn't take much to to open the hole slightly with a round file, and with a little care keeping the hole round.

 

[LS6 Tommy]

I've gone through this twice. There isn't a stud made with the right knurl diameter. One is too small, the other slightly too large. I went with the larger both times and when rpessing them in, it cracks the rotors around the studss. Current (fairly new rotors) are cracked right now.

My suggestion would be to take the rotors to a machine shop, have the holes reamed to the right size and have them threaded for 1/2-20" thread in wheel studs.

I have 1/2' 20 studs on all four corners. I went a slightly different route. I didn't have the holes reamed. I centered each stud hole individually on Eric's mill and just used the proper drill size for the studs. I forget what it was. Then I had the studs pressed. Be sure to have the rotors cut after having the studs pressed. It can mess up the run out and the front end will shake like crazy.

Tommy

 

[scorpion]

I am not sure if "reaming" the hole will work for the press in knurled studs. They may be tight "down in the ditch" of the knurls in the disc. Don't know for sure just something to check out before you possibly ruin some discs. Ron

 

[Sandy]

Happy conclusion to this thread.

Today drilled the rotor stud holes using 9/16 bit.

The studs went in pretty smoothly using 1 - 2 tons of press pressure.

Only went to the higher pressure when the studs were basically down just to make sure that was it.

Seated nicely and no problems.

 

[454RAT]

any pics