Thats how I rebuild my tranny first time)Jaso74 wrote: ↑Mon Apr 22, 2024 1:13 pm Auto was working fine, pretty standard higher km's sluggy 4l60e .
Chucked a corvette servo in because well , 60 bucks why not .
Pretty easy job , took nothing off just worked in the space I had between body, trans, and exhaust . 1.5 hrs later all good , refilled lost atf , roadtested at 7.30 at night runnning great and shift time between 1st and 2nd much better but not harsh at all.
Forward to yesterday arvo and went for a drive , at around the 35 minute mark wouldn't upshift to 4th anymore , no bangs no nothing just wouldn't upshift.
Installed Sonnax HP kit and teared supplied rubber ring for 4th servo piston
Got P1870 and jerking at 80+ at medium load after couple of months
Ordered all parts and after disassemble found this rubber seal was teared by me )))