What about compressed length, spring rate, etc.? I googled this it might be helpful?
LTZ frame and lower a-arm, shock mounting locations:
Upper shock mounting width: 20.4mm
Lower shock mounting width: 30.4mm
LTZ fronts:
19.80mm upper
29.80mm lower
16 7/8" length
LTR fronts:
22mm upper mount width
22mm lower mounting width
17.25" length
TRX 450R fronts:
18.50mm upper
30mm lower
16 3/8" length
TRX 250R fronts:
19mm upper
30mm lower
15 3/4" length