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this weekend, with the help of ASTR's gaskets, tracings, and measurements of his A450, I verified that A440 bellhousing should bolt up to A450 (and vice versa), and A440 4WD adapter housing should bolt up to backside of the A450 tranny. Input and output shafts of his A450 are different from A440...if A440 output shaft can be swapped into A450, that would be ideal as the A450 will have proper shift points and will take the 4HE1's power/torque. I'm skeptical of the A440 living behind the 4HE1 without a complete rebuild + the upgraded valve body from Australia, and that still leaves a question mark on the A440's clutches and other internals...and starter/torque converter issues. ASTR's going to get us a LOT closer to swapping a 4HE1 ahead of an automatic in a cruiser, but there are some crucial details to be worked out to do it without a bunch of fabrication...and a tranny rebuild for a shaft swap on the front or back of the auto seems inevitable to me. Could be worse!
Steve
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TornadoAlleyCruisers
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