Rear wheel spacer question - early offset

[bumflick]

Does anyone make shorter than normal replacement wheel studs? I have seen a number of adds for longer than normal, but not the opposite. Anyone just cut down the stock studs? Seems like a bad idea to me, but always willing to listen to the voice of experience.

I am trying to fit an offset adapter (the thing that bolts on the wheel using stock studs, but has its own studs for the wheel to bolt to. As opposed to a spacer which sort of a big washer). However, the size I want is shorter than the stock wheel studs, so they will protrude about 1/4" and contact the back of the wheel.

specifically looking at the H&R 21MM unit

[PDX-944]

heres my thread on this.
For those who have considered spacers on the rear with cookie cutters!

you need 911 studs

[DannoXYZ]

Couple of seconds each with an angle-grinder with cutting discs should make them shorter.

[bumflick]

PDX - I did see your post. You had an early car with the factory rear spacers, correct? Those came with 66mm wheel studs and I think you swapped to a 52mm stud from a 911 to get your adapter to bolt up.

I want to do the same thing, but my car is an 86 that has 45mm wheel studs. The question is, are there any studs shorter than 45mm?


Danno - not sure if you were serious. Anyone actually cut down the studs?

[racer]

can you run a small spacer (3mm?) between the hub and the adaptor? Would that give you clearance with the adaptor? How much are you trying to push the wheels out? you don't mention what size wheels you are using in this equation. Are you using steel lug nuts to bold the adaptor on?

[DannoXYZ]

Yes, i've cut down factory studs before. Bevel the tip to remove sharp edge and you're done.

Although I don't like wheel-adapters, they're heavy and have hidden set of nuts that can't be inspected without removing the wheel.

I always recommend simple spacers with longer studs like the factory configuration.

[bumflick]

Race, sorry for the lack of clarity. I'm trying to install late offset 9.5 inch wheels on an early offset 951. The wheels came with 1.5 inch adapters, that were rubbing on the outer fender. Yes, they came with steel nuts.

I can remove the spacer and reinstall the wheel, and that eliminates the rubbing but the wheel now sits way inside the fender and the aesthetics are less than pleasant.

I think I need about 1 inch of offset. If I go with a spacer, I will require longer studs. If I go with an adapter, I will need shorter, or cut studs. Cano, any concerns with throwing the hub out of balance when you cut the studs? Any tricks to make sure you cut evenly?

I'm trying to avoid permanent alterations, so cutting or rolling the fenders are a last resort.

[DannoXYZ]

No problem with balance because they are close to center of rotation. Very low polar moment of inertia. With the final touch-up with sanding disc to bevel the edges, you can grind down the tips of the longest ones so they'll all be same length.

[bumflick]

Dano, thanks.

Looks like I will be cutting some wheel studs.

[DannoXYZ]

Here's the procedure:

- thread regular nut all the way down stud (when you remove later, it'll clean and chase the threads)

- wrap 1/4" wide tape with one edge flush with end of stud to use as a cutting guide

- cut off end with cutting disc

- bevel sharp edge with sanding disc, also make minor length adjustments if needed

- unscrew nut

That's it!

[bumflick]

Thank you.