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Did some 400 transmissions have 4 forward gears?
No, all of the TH400's were 3 speed.
WHere do you hook up the vacuum lines from the modulator on a TH400 automatic transmission?
engine vacuum or direct into the intake.
How do you adjust the bands on a chevy th400?
they are not maintenance adjustable on the th400
How do you adjust the bands on a th400 transmission?
they are not maintenance adjustable on the th400
Will a th400 transmission bolt onto a gm 305 small block?
as long as it is a chevy bolt pattern th400
Is your th400 interchangable with a th700ra transmission?
no
Does a th400 have the same bell housing as 4l60e?
same bolt pattern if the 4l60e was behind a v8 or 4.3and the th400 was from a chevy and not a (bpo or caddy )
What is the 4 speed alternative to the th400?
4l80e
What is the difference between a TH350 and TH400 Trans?
The th400 is a much stronger transmission meant for heavy duty use while the th350 is meant for normal use.
What does the wire on the left side of a 1976 TH400 do?
That is the wire that actuates the kick down solenoid. The th400 has an electric kick down solenoid and no cable like the th350
What is the difference between a 700 aND A 400 CLASSIC TRUCK TRANSMISSION?
I'm assuming you're talking about the 700R4 and the TH400. The 700R4 is an overdrive transmission - this is what later evolved into the 4L60 and 4L60E. It has a .69 overdrive ratio, with four forward and one reverse gear. The TH400 is a direct drive transmission, with three forward and one reverse gear, and was also rated for higher torque engines than the TH350, and also the 700R4/4L60 - this was commonly mated to small block engines in 3/4 ton and heavier pickups, and is also the transmission used in the military M1008 and M1009 CUCVs, as well as the M998 series HMMWV ('Humvee'), in both cases, matched up with the 6.2 liter Detroit Diesel V8 engine.
What GM overdrive transmissions interchange with a TH400?
All of them. seriously.
