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 Post subject: Th400 pump?
 Post Posted: Sat May 13, 2017 7:48 pm 
Amateur Racer

Joined: Fri Jan 14, 2011 11:07 pm
Posts: 163
Location: Low End
I have what's supposed to be a shorttail th400 from a p/u truck, it has a 8bolt front pump. Well one of the pump bolt holes was stripped during the last rebuild and I'm now being told that the case is no good. I have a spare case but it uses a 6 bolt pump, and I'm trying to find out if my remaining 8bolt internal parts can be used in the 6bolt case with a 6bolt pump, or do I need to find another 8bolt case to swap my internals into. Just trying to make sure the trans shop isn't trying to run me up for a used hard to find case, I'm pretty sure a 6bolt pump is cheaper and easier to obtain than the cost of a 8bolt case and pump, right? Someone please chime in and help me out, thanks in advance.

 Post subject: Re: Th400 pump?
 Post Posted: Mon May 15, 2017 1:09 pm 
Frequent Racer

Joined: Fri Jan 19, 2007 11:21 pm
Posts: 382
Location: Clearfield, Utah
If it looks like there is enough meat in the housing, i wouldn't hesitate putting a heli coil in it. Worst case is you have to buy a new case, and you already think you might anyways, $10 in a heli coil kit at a hardware store could save the headache of a new case. Just keep the aluminum chips away from important parts and I don't see a problem.

1982 El Camino street machine gone drag car...

AFR headed 9.8:1 383

I like Cobras... They taste like chicken.

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