mill a zero rate?

[mouse]

I thought I read somewhere that someone had milled their zero rate springs to get a better pinion angle. I have a bit too much angle on the u-joints, and I want to angle the rear end a little. When I brought the truck to the local driveshaft shop he recommended a 3 degree shim. I really don't want to use a shim and like the idea of angling the zero rate instead.

Now, do I pay a machine shop to setup the milling maching to get a nice exact cut, or do I use a metal band saw and make as close of cut to perfect as I can and then file smooth?

Any other options?

Thanks

 

[ntsqd]

There are good shims and bad shims. Good shims are made from steel. Bad shims are aluminum. A steel shim wouldn't bother me.

Mill it if you go that route.

 

[2Dogs]

I had a steel degree shim made - with countersunk bolt hole. Added 3/8"
to the back which actually helped. The shim was welded to the ZR all the way around.

 

[sickquad]

I milled my own "zero rate" with the angle I needed in it. I would have to say that doing it with a cutting blade would not work. Has to be done in a Bridgeport. It wouldn't be cheap to have a machine shop do it.

 

[jkce457]

You can buy them already milled from ORD and then sell the ones that you have.

 

[mouse]

Thanks for the replies. I'll check with ORD.

 

[sickquad]

If you get stuck for them. I could make you a pair. PM me.