Quote:
Originally Posted by Aurora40
The 4T65 isn't great in my opinion, at least not with the SC or V8 cars. Ours went about 170k in the Regal GS, but that seems to be uncommon. The 4T80 is pretty bulletproof, but only paired with Northstar based motors.
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Yeah the 4T65 and the 3800SC is not a good match.
I bought my 99 GTP with 37K miles, first trans at ~44K miles ( no clue on PO care)
I am now at 127K car runs great, trans seems good too. most of the mileage was work commute (65 miles a day on the highway @ 65-70MPH).
Now I drive 8 miles.
As Dominic said, yeah the 3800SC have gasket issues. I have replaced (mostly under warranty0 the following gaskets:
Valve covers
intake manifold
Oil Pan
Rear main
Timing Cover
front seal
installed new plugs and wires at 96K. replaced the Power steering pump and the ABS ECM (bought a good used one)
Car has been good though, I expect another 30K out of it I hope