Rear End Gear Carrier R&R

[dodgerroger]

I want to change the rear end gears in my 94 ZR1. I would like to R&R the carrier myself and have a highly reputable shop set up the gears. My question is does the cars rear wheels need to be suspended off the ground or can the car just be elevated on a drive on type rack and still remove the carrier? Any tips or shortcuts on R&R of the rear differential carrier would be appreciated. Thanks.

[WB9MCW]

This is the way I would go. It ain't cheep but it will work the first time and it wont break!!! However I live in Illinois. http://www.zr1specialist.com/HAT%20Web/products/gears.htm