Best I could find is that there are (3) different racks for the 98-02 F-body
A 98-99 F41 and the (FE2, FE4 or FE7) one
The other rack is listed as a 00-02 (no other info about this one)
I called to find out the difference, all he could tell me was that the F41 has a tighter turn radius
And all the others are basically the same

I'm putting an LS motor in my 97 Z, so I don't have any numbers that say what LS rack it had before
Because it had an LT1 rack in the car before

Will all (3) racks fit in the LS cradle
Is one rack better or worse than the others

Thanks,
Rob

 

Based on what I've read the angle of the gear is different. I think you need a FE4 rack.