Scarlet, thanx for the info, i did look into it, but now i have a greater problem, figured i'd fill you guys in, seems when i put the truck in reverse this weekend, pulling a trailer for the first time since converter was put in, it has an issue with reverse, when you step on the throttle, it just pulls the motor down and doesnt do anything, i mean it almost sounds like the truck is gonna stall....so i'm like "wtf"??????....i call suncoast, where i got the converter, they listen patiently to alll my probs with the converter, the reverse deal ( which i wasnt sure what was causing that) to how sluggish it is off the line, ver loose converter, to how it snaps your neck on the lockup. So the guy says he's gonna have a tech call me back as soon as he can, i still havent got that call, hopefully tomorrow, i'm sure they are busy. But then bout 10mins later one of the tech guys from ATS turbo call me back, i'd been waiting since last week so i could talk with them about burning a chip to get rid of the harsh lockup, well this guy was full of info about my current problem, it seems that the 4R100's have an issue with the front pumps warping, and when you take it apart, ( which you have to do installin the converter to modify the tcc) then you put it back together and it has a habit of the warp getting worse, this causes "cross leak", its leakin fluid when i put it in reverse into the lockup orifice and causing it to try and lock up, hence the severe "flare" and the motor getting pulled down when i put it in reverse, sucks right???...he goes on to tell me every tranny they do they send the pumps to the machine shop to true them up, sometimes they do them by hand with a file, either way gets the job done, then he told me, which i figured but it def made me feel better to hear it, that the converter has to be too loose, the way its set up now its makin the motor work to hard to accelerate and its costing me boost on the top end, it used to make 30lbs on level 5 on the edge, now i'm lucky to see 23 on the same level, so now suncoast is gonna have to redo the converter, tighten it up a couple hundred rpm and make sure all else is well and we gotta fix the pump. Noooo fun, lol...kinda wish i just kept the stock one in!!! except for the shudder it was better, lol...so now ijust hope when all said and done we dont go the extreme other way and make the converter too tight, but i guess we'll see, i'll let y'all know how i make out with suncoast and what they say, sorry for the rant, but figured it was interesting reading at least.
