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Allison Transmission Question

8572 Views 5 Replies 5 Participants Last post by  pera730, 
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I just finished rebuilding the 6-71 for the TDH 4512 listed in my Sig. The Allison V-Drive (pretty much the most bullet proof transmission I've ever seen) is in excellent shape and doesn't need any work.

However, it still has the original fluid in it from god knows when in the '70s. The GM manuals, which date from 1955, call out a GM part number for the fluid that is now meaningless. The trans fluid looks like clear hydraulic oil, and I'm wondering if anybody knows what a good replacement for it would be, or whether Dexron III would work as well.

thanks,

mike
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Hi, i have a GM TDH 3714 -696 transit bus, that also the same trans as your 4512, i use ATF trans fluid, it works just fine. also i noticed your from philadelphia, i too live there in the northeast, and have restored my 3714 to look like a PTC bus! email me at [email protected]
Frankie.
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