silvvette

Anyone have part nbrs and website. Looking for grade8 w/o having to pay Corvette-tax. If you have a set fpr sale - pls let me know.

Already have the 8" bolts/nuts and could look to trade if anyone wants to swap.

Rebelrob

try tractor supply store. they are plentiful around here. Otherwise one of the vendors should have and or a fastener specialty store.

derekderek

10 inch bolts are too long. They're down below the rim. You got a flat tire the bolts hit the ground bad things happen. You have too much curve in your spring.

Mooser

Although I agree there's likely too much arc in the spring and it's always best to fix the problem, if you're running a larger than 15" rim you can get away with a longer then 8" bolt. Only real way to know the safe limit is to measure the clearance on the car
M

gbvette62

Just about any Corvette vendor that carries 84-96 parts, should have 10" rear spring bolts. Stock C4 spring bolts are 9", the 10" ones are sold to lower C4's. I have a couple customers who have successfully used the 10" bolts on C3's.

bigvx5

What’s the diameter and thread size of these bolts?..I need to lower my rear about an inch.

Mooser

9/16-18 Grade 8
(not sure they fit you 99 model though
M

bigvx5

cool..thanks for the quick response

bigvx5

MOOSER I’m using them on my 1975

Mooser

(just kidding)
M

bigvx5

I’ve been to several places and haven’t found anything close to this size..are these suppose to be fully threaded?

Mooser

No, only the bottom couple of inches needs to be threaded, otherwise you wouldn't need longer bolts.
Typically the 8" bolts are sold be any vendor that sells the glass springs (CC, Van, etc)
The C4 bolts are just over 9", some vendors sell 10" ones to lower the C4
Heavy equipment (transport, bulldozer type places) will carry or can get them
Fastenal but you normally need an account for them
M