Questions on changing rear spring...

[KILLSHOTS]

Hey guys,

When the shop did the new gears, they found that my OE rear spring was starting to splinter very slightly, so I need to start looking for a replacement. A few questions...

1. Does anyone know exactly what the the stock tension was (in lbs, not NM) for a '90 ZR-1 with Z51? I've been told 490-500lb but I didn't think it was that high. That's the only part that I intend to replace, so I want it as close to OE as possible.

2. Do I need to purchase anything other than the spring itself? Will the replacement spring come with the required bushings, etc.? (I think I'm gonna order from VB&P)

3. How difficult is the install? I generally don't work on my own car unless it's REALLY simple, but I'd like to do it myself if I can. Can anybody give me a breakdown of the procedure? Is it a 1-person job?

Thanks for all your help, brothers!