Sorry but, mine are the 31 spline. Years ago, (Gees, has it really been 9 years)
I got the numbers off the tag and called Currie, they said it's a locker with 31 splined axles. The weak point is the tranny.
I haven't started researching yet, who has the cheapest price ?
Without changing my 331 gears, I've heard someone here say you can order what gears you want in the TKO 600 ?
What are yours and how do you like them. I think I herd a .82 overdrive, what about 1st ?
With my TKO 3550 & 331 gears, at 60 mph I'm at 2,000 rpm. Which is great.