Found out today that my tranny pump isn't keeping a good pressure at all times. My mech said the pump is on the way out, so I'm looking right now at a new or used transmission. Used installed would be $1000 with a short warranty (30 days to 6 months) and new would be $2900 with a 3 year 36,000 mile warranty. Thinking the new, but it depends on WHEN it goes and what the wallet sasys at that time
I know I have the 4T45 transmission, and I also know that the GAGT Tranny has a 3.29 FDR and the Cobalt, Ion, G6 base, etc have the 3.63 FDR
Two questions:
1 Which would be the better FDR for my car? I googled FDR's and found that the calc's aren't that far off using 3.05 FDR, with a 25 inch tire at 70 MPH I came up with 2009 RPM's which is pretty damn close if not dead on. I like the 3.29 but thinking the quickeness of a 3.63 would be just simply
2 If I did the 3.63 FDR, all those trannies are mated to 4 bangers. Are the clutch packs, tranny pump, gears, etc able to handle a V6 motor, or did GM used weaker items to save money?
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