Slipping 3rd to 4th when hot...

[ttboost]

Shudder is slipping...death knoll...not gonna get better...it will start in higher gears (more load) and work it's way down. If it's doing it in lower gears now..not good. If you wanna keep it an auto, send it to 517 Transmission. He told me he custom fabs parts to make it stronger and last longer. Don't ask me what parts, but everyone seems to be happy with his work.

[lswing]

Shudder is slipping...death knoll...not gonna get better...it will start in higher gears (more load) and work it's way down. If it's doing it in lower gears now..not good. If you wanna keep it an auto, send it to 517 Transmission. He told me he custom fabs parts to make it stronger and last longer. Don't ask me what parts, but everyone seems to be happy with his work.

True to some extent....both of my trans have always shuddered under max torque in 3rd, both have only slipped 3rd to 4th. The previous trans blew itself apart in 2nd gear at 89k and was clunky and done after that. The old trans only slipped gear once, was low on fluid, done 7 months later.

The new trans has always shuddered some under max load. I've got this thing tuned strong, and just pushed the new trans over the edge by increasing the tune again, is my belief. I could pull a bit of timing and it should hold, but a bummer to not utilize the power. This one is running an upgraded clutch pack and other goodies, so I'd be surprised if it tore apart after 4k and 300 WOT runs...but you never know! I figure one good sign is no clutch material in the pan yet. Never launched, probably about 15 days were I really drove the piss out of it on back country roads.

As far as custom parts I'm sure 517 has some good stuff. Talking with Tozo he said there is no more room in the A drum for more or bigger clutches than he's already added. This should be stronger than stock, but my power levels are up also.

Again, always attributed the shudder to clutches slipping some, but the jump in shifts is when they break loose, and could be good for a long time even after that, with any luck!

Edit; 4-5 are on clutch pack B, so why do you think it would start there and work down to clutch pack A 1-3, if they are separate clutch packs? Unless it's another part that wears? I'll have to look at the trans diagram again. Maybe that jump from pack A to B is a weakness. And yes, auto trans only for me, bad back unfortunately.