WTF: Tranny minus 4th Gear = GAY

**scheides** · 10-13-2009

Min lasted 38k: 21k miles stock, 9k miles@266whp/240wtq, 8k miles @305-320whp/300-320wtq, and about 10 parking lot launches. The parking lot launches are what ultimately killed it. I drive aggressive too, but ultimately, launching kills stock clutches faster than anything else.

I gotta say though, I didn't realize that 4th gear on DSMs pooped out at 400wtq. Suck.

blackrosenova400 · 10-13-2009

Yeah, at these power levels, the trans case actually starts flexing, causing the gears from the counter shaft and input shaft to pull away from each other. Now the gear contact is on a weaker part of the tooth. Its why I shimmed up my counter shaft and input shaft up tighter to help prevent this, but does put more load on the bearings obviously.

Quote:

Originally Posted by scheides

Min lasted 38k: 21k miles stock, 9k miles@266whp/240wtq, 8k miles @305-320whp/300-320wtq, and about 10 parking lot launches. The parking lot launches are what ultimately killed it. I drive aggressive too, but ultimately, launching kills stock clutches faster than anything else.

I gotta say though, I didn't realize that 4th gear on DSMs pooped out at 400wtq. Suck.