Quote:
Originally Posted by GP99GT
the transmissions are just like every other newer FWD GM transmission...about 130k miles and itll be ready for a new one. the one in my GP GT lasted til 141k before i lost 3rd gear completely (was slipping for a few thousand before that)
difference between the GTPs trans (4T65E-HD) and a non-supercharged 3.8 trans (4T65E) is the HD has a stronger differential and one of the axles is shorter...
97-98 GTPs have a few differences. 99+ has a revised coolant overflow bottle for instance...so try to get a 99-up, the newer the better basically.
they all use the same eaton M90 supercharger. s/c bearing/coupler is somewhat common on them but not a hard thing to replace, and its easy to tell if one youre looking at buying needs one - the supercharger will rattle like crazy
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yeah i knew there was a reason the 2000 and ups were better....most ive heard is that the older ones need work on the snout more often than the newer ones..the coolant is new to me. and yeah sc bearing rattles are easy to hear...
minder....if anyone is gonna redo their sc fluid....wait till its completely cool..the sc is super pressurized and will spray if hot.
local airfields have awesome fluids used for s/c's
ford has synthetic blower fluid. good stuff. expensive.