Snaps

Front and rear leaf springs, is there supposed to be a nut? '09 Zr1

JaredW

Yes, Thats the ride height adjustment.

Snaps

Thanks thought so

Unreal

No nuts

MTPZ06

No "jam nut" if you will...that bolt is supposed to thread through the leaf just like yours is currently. So your car is normal.

Sox-Fan

It is molded into the spring, it's not something you can see or get a wrench on.

Chiselchst

If you wanted to raise the car ride height (not too popular here), you'd screw that down extending the length/depth of the height adjuster. It's also used to weight balance the car (the 4-wheels to each other).

ZR1 right? How is your front height? Exactly where you want it, too low, or too high? Just curious...

Does anyone happen to know the ZR1 front leaf spring rate specs?

MTPZ06

It's a C6 Z51 spring that GM utilized. There's a link to an article that I have from another post that talks about the springs here: https://www.corvetteforum.com/forums...post1596926521