I'm installing a Spohn TA in the next couple of days and was wondering what the length is on the bolts that come in the install kit. I didn't buy it, because I didn't feel like spending 15 bucks on a couple of bolts, and I think I can pick them up cheaper. I know they are 9/16, but I don't know how long the bolts should be.

Thanks!

 

why would you need new bolts? use the stock ones. he should be providing the 4 bolts needed for the cross member. no need for any additional bolts unless you just want new ones.

 

The mounting tabs are thicker on the Spohn unit, than the stock TA. They sell a hardware kit that comes with the 2 bolts, 4 washers, and 2 nuts but it is 15 bucks. I figured I could get them cheaper locally. I have the 4 bolts for the cross member, I'm talking about 2 that attach the rear of the TA.

 

The stock bolts will work, but you have to leave the washers off, because of the thicker steel on the Spohn TA. The slightly longer bolts Steve sells are grade 8, the nuts are lock-nuts, and I know it took him a while to find a source. I think that using the washers will minimize the damage to the powdercoat.

 

The stock rear bolts fit fine. I have the spohn unit and also had a different aftermarket adj. torque arm with no problems using the stock ones. Just make sure you tighten it as much as possible. If you want the size, I would call a local GM Parts place and ask them cause I don't think too many people here would have that info.