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I found a gm 3sp with overdrive out of a mid 80's chevy truck. The tranny looks good except that the shifter isn't there would anyone know what would work? I Can do slite modifications if necessary. Can anyone help?
Thanks

They used a A-833 Mopar alum. case 4-sp., 3rd is direct, 4th is O.D. for a few yrs. there, is this what you have? Or, do you have an actual 3-sp. with an O.D. section in the tail end of it
like was used in many older cars/lt. trucks? Doug

http://picturetrail.com/nomoneyhoney

It is the a833.

Mac- go to http://www.slantsix.org/articles/4-speeds/ODA833fourspeed1.htm - I hope I got this right. Anyway, you need to turn down the input bearing retainer (clutch snout) to fit your bellhousing. Sorry, I'm short on time tonite, I'll check back Mon. or so. Hope this helps, Doug

so it's not a "gm 3spd w/ OD", but a Mopar [NewProcess] overdrive 4 speed

for the A833 you need the bellhousing that it was on in the Chevy, as the mounting bolt pattern on the trans is the Mopar one and will NOT fit any other GM bellhousing [GM made one specially for that trans] - if the shifter that was on it isn't available you can adapt a Hurst 4spd shifter

Bill

better do a search on this one in the archives... that transmission was also available with the chevy bolt pattern and correct input bearing retainer, the pitfalls are covered extensively as is the shifter situation

I have an A833 bolted up to Chevy bell housing that had a SM465 on it. It was a tight fit, but the input bearing for the 465 is larger than the SM420. They did make a special bell housing with the both Chevy and Mopar bolt pattern on it, scarce.

Since you don't have the shifter, I'll assume you don't have the plate the shifter bolted too. If you can get the original distributer do so, it will save a lot of hassle. The original plate for that transmission is bent over the top of the tail shaft, putting the shifter top center. Bolting a Hurst to it could have the reverse lever banging the mounting bolts. Finding a Hurst for a Muncie, Saginaw, or ?? with mounting plate and shift rods at least one maybe more problems. First I'm not sure the three bolt pattern on the Muncie and Saginaws is the same as the A833. The plate is straigth up moving the shifter about 1-2 inches towards the driver. For sure the shift rod lenghts are different, longer. Mopar used the A833 behind everything from the slant six to the Hemi, and in everything from the Duster to the Vans. Even though they were use in everything the Mopar crowd thinks the shifters are worth their weight in gold. If you can find a shifter out of a Dodge van (even the 3/4 ton) you will have the right lenght rods and shift knob will be about the right hieght. The mounting plate is flat like the Muncie and Saginaws.

Larry

I understood the GM bolt pattern A833 was quite scarce, only used on the diesels or something, but might be wrong - at any rate, the thread to check is at the inliners site , and the modifications that may be required depend partly on what series truck you use it for

Bill

I've had one with the GM bolt pattern in my 51 Chevy pu for years.All you have to do is remove the front retainer,take it to a machine shop to have it's diameter reduced slightly to fit the bellhousing center hole.The shifter linkage is pretty much the same as any older Hurst 4spd.You'll need to fab up a shifter mount from the swap meet Hurst one ya buy.The tranny is 21 inches long like almost all Saginaw 3 and 4 spds and Muncie car 4spd.The rear spline takes a TH350 or Saginaw yoke.

The shifter on my GM 89mm (RPO MYA-6) says Hurst on the handle, and this is the original shifter that came with the tranny. I had mistakenly assumed that the Mopar A-833 and the GM 89mm are the same. The are the same EXCEPT for the input shaft, tail housing, and bell housing bolt pattern, which is me saying they are NOT the same. I bought an A-833 on eBay and found all this out the hard way. It would be possible to make an adapter plate to graft a GM bell housing to the mopar tranny, but it would be a LOT of work.

Thanks Tony for telling me what yoke this tranny uses--I haven't been able to find that out easily from anyone local although I haven't worked up nerve enough to ask our local GM dealer's parts gurus.

Thanks guys for all your imput. I haven't got the tranny yet but was told it came out of a mid 80's chevy truck, and has the GM bolt pattern for the bell housing. The shifter is all i am missing and it sounds a hurst 4spd from another GM transmission will work with slite modifications. Thanks again Mac

A Hurst shifter recently sold on ebay - search for item # 8055244847, has a good pic. of it & the mount. Doug