23 or 18 spline?
dana 60 rear , 4.56s with MW axles.
Cal Tracs , 255/60 BF regular tires. the problem was I had myself and my 2 friends in the car. I'm sure the extra 500 lbs didn't help. Plus , shifting at 6500 without lifting my right foot hits pretty hard with that old school RAM paddle disc. I definitely need to change my clutch disc for something a little more forgiving.
Well, Caltracs!, that explains a lot.
I have a GVod behind my Commando, that I use as a Splitter. I shift that at 7000, with a factory Heavy flywheel thru a CF diaphragm, into a 3.55 posi, into either 295BFGs or into 325/50 Drag-Radials.
Into third, my road-gear is 6.92 versus your 6.38
I have an HO 367 that, by it's trap-speed is putting out 430 hp. This 367 has broke two of those Micky-Mouse overdrive gears in the A833od boxes but left the other gears intact. It has not broken a 2.47 box, nor a 2.66 box nor the Commando box.
The GVod shifts faster and harder than sidestepping the clutch. I mean it's POW! and breaks the tires loose at 85mph.
My secret?
I no longer use the CFII disc, which I found to be too harsh, instead, I use factory 340 organic discs; and
I reduced the clampload on the CF PP, to give me a little slip at rpms below when the flyweights come to the party. Ima thinking that static load plays a role at hi-rpm as well.
This combination
eats those 340 discs, but the last time I took the trans down, it was 17 minutes, so no big deal.
The 340 discs crack around the spring pockets, vibrate, and then the springs vacate. I now leave the lower inspection cover off. Or if I wait too long, the hub may tear out. But it's worth it to not bust the trans, nor the ring-gears, nor the U-joints. I'm getting easier on those 340 discs as I get older, saving those GV splits for special occasions. lol.
A long time ago, I was thinking of installing Caltracs, but I like sliding and drifting way more than replacing busted parts.
