riceball777

Well my comptech diff just blew up. This diss has about 10,000 miles on it with the car between 400-600whp. I generally drive pretty easy. I have done maybe 4 autocrosses and 1 day at the drag strip. The main caps for the diff did not break off which is what typically happens on a stock diff so i supose the comptech diff somewhat worked I'll be sending it out to puddymod tomorrow and he will rebuild it to his stage 3. He said it should handle 600whp with out problems.

Here is a pic of the pinion gear with some missing teeth.


Its hard to tell in this pic but the ring gear is a litter chewed up.

beaudin223

OUCH , comptech not the best option imo , you did the right choice to send them to puddy

spectacle

What were you doing when it let go?

soulicious

Sidestepping with a twin disc clutch?

Spoolin

Cryo-treated gears or stock?

riceball777

I was just doing a 1-3 gear pull geting onto the freeway.

riceball777

It's all stock besides the comptech reinforced diff housing. My new puddy mod stage 3 will have cryo-treated gears.

Spoolin

Gotcha.. I'm wondering if you had cryo-treated gears, that this may not have happened.

s2000Junky

The end caps usually wont break, they flex. That's the issue with stock equipped diffs, especially the ap1. You still may not have had enough reinforcement on the end caps with the comptech diff (considering you still damaged the ring and pinion gear) thats exactly whats happens when the end cap assy flexes and the gears go out of alignment. The gears themselves secondarily could still be a weak point.

klopot07s2k

just curious, what diff fluid did you use, brand and viscosity??