400 trany

Freddy57 · 10-19-2005, 06:04 PM

Need to know the best way to find a 400 trany for a 1977 oldsmobile cutlass

jdorour · 10-25-2005, 09:18 AM

You can find a THM400 in any junk yard.
A THM400 out of a 1968 and later Buick, Pontiac or Olds will fit. You will need to have the driveshaft short and you will need to change the front yoke on the drive shaft. The 400 trans was used on the big block cars until 1976 and the 375B was used until 1980. Most of the time all you will need to do is move the crossmember aft to the holes that are already drilled in the frame.

10-25-2005, 09:18 AM	#2 (permalink)
jdorour Senior Member Join Date: Feb 2004 Location: Atlanta, GA. Posts: 123	You can find a THM400 in any junk yard. A THM400 out of a 1968 and later Buick, Pontiac or Olds will fit. You will need to have the driveshaft short and you will need to change the front yoke on the drive shaft. The 400 trans was used on the big block cars until 1976 and the 375B was used until 1980. Most of the time all you will need to do is move the crossmember aft to the holes that are already drilled in the frame. __________________ 1966 Ninety Eight Convertible - 425 Tri-Carb, Factory Dual Exh, Switch-Pitch THM400, 3.54 Posi. 1966 Catalina Wagon - 421 Tri-Power, M21, 4.11 Saf-T-Trac, 8 Bolt Wheels 1989 IROC-Z - 5.7TPI

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10-19-2005, 06:04 PM	#1 (permalink)
Freddy57 Junior Member Join Date: Oct 2005 Location: Colorado Posts: 1	Need to know the best way to find a 400 trany for a 1977 oldsmobile cutlass