My original 700R4 wasnt a lock-up

News to me.....I wonder how they decided that. Are you sure that the converter wasn't just replaced at somepoint with a non-lockup one? They are much cheaper than the lockup ones.....

- Justin

I'm not sure of the determination of the lock up converter. It might have been with a performance package. My buddy's 700 was a non-lockup...that's why it kept blowing apart. It was $600 to fix it the first time, then another $400. He could have bought a new trans with the 2 repairs. TCI streetfighter is about $1500 new from JEGS. Like I said earlier - you can always go for a Richmond 5-speed or T56...

Definitely wait on the gears. Others will confirm this to be true or not, but if I remember correctly, you can't go bigger than 3.73s without changing the carrier or something like that. When I dumped the T-56 in my Z, I wanted 4.10s, and the shop said no - you have more stuff to change cause the ring gear gets bigger and doesn't fit. Confirmations on that anyone???

I was looking for info about the lock-up/non-lock up. Theoretically, it would seem the lock-up to be a better product. Someone more knowledgeable on this???

If your car had 3.08 or numerically lower gears, then you should have a series II carrier...if the factory gears were 3.23 or numerically higher, then you should have a series III carrier. IIRC, there are companies that make 3.23, 3.42, and 3.73 gears for a series II carrier, but I do not know if they make 4.10 gears for the series II.

Also - do you know why your buddies trans kept blowing up? It couldn't have just been because it wasn't a lockup, or every other non-lockup trans would theoretically blow up repeatedly too.

- Justin