Will GM 200r4 work with factory floor shift location?
Is that trans just a stock rebuild or is it beefed up?
Not sure if you're asking me or JBC426. If you're asking me then the answer is that my transmission was modified as per my instructions to the transmission shop. Valve body mods, oiling mods, servo mods, numerous HD/hardened parts, non lock up conversion valve, 10 (hardened) vane pump with new pump body, etc, etc. I bought a shift kit that detailed numerous modifications to make the transmission to hold up under heavy duty use. NOT A RACE TRANSMISSION, just a healthy street tranny that can handle more torque and HP than a standard 2004R. I told the trans mechanic that I want the trans to shift firm NOT HARD.
I still haven't had the chance to install the trans even though I have everything I need to make the change. The torque converter is a non lock for a very good reason....both the 2004R and the 700R4 use the factory lock up torque converter that "kicks in" after the tranny is in forth gear. Unfortunately the method used to lock up the torque converter is hydraulic. In other words when the torque converter locks up it steals hydraulic pressure from the system which robs pressure from the forth gear lock up pressure. In these overdrive transmissions forth gear is usually the first thing that fails. Once forth gear clutches begin to fail they flood the tranny with trash (metal/fibers). It all down hill after that !!!! One reason for forth gear failure that it is the weakest gear and the other reason is the fact that the converter steals pressure from the system to engage the converter lock up. By using a non lock up converter you take away one factor which causes forth gear to fail and increases the likelihood of a long lived transmission. BOY!!!! That was a mouthful!!
PS - If you decide to use a non lock up converter be sure to also use the biggest trans oil cooler you can get in your grill. Non lock converters produce more heat (the higher the stall the more heat you get). This is one reason I didn't want a high stall non lock up converter for street use. It's really not that big a deal since cars ran with no lock up converter for many years with the standard radiator trans cooler and they lasted many, many miles before failure. But if you have a strong motor and a non lock up converter it doesn't hurt to have a little insurance (Big trans cooler) in addition to the radiator cooler!!
Treblig