Verify AOD transmission for 33

[Jeff33Ford]

I have been searching but not finding my answer. The AOD that is used in the 33 HotRod.
Is it the short or long tail stock. I assume it is the short tail stock like in the fox body mustangs, but I have been burned for assuming before.
I think I am looking for a 84-93 but they come in both tail stock configurations.

[narly1]

I can't speak to your concern from direct experience, but there have been some posts regarding driveshaft length issues on the forums. Worst case scenario go for the shorty as used in the Mustang which is also the referenced generic donor car. Easier to order a new longer shaft if required than to shorten down the one you get with the kit.

Earl

[wallace18]

Short tail for sure.

155809

[Jeff33Ford]

Great!! Thanks guys. Just wanted to be sure.

[Jeff33Ford]

Finally finished rebuilding my AOD. It is ready to go when needed many months from now. But I feel like I got something done before the car shows up. Next month... fingers crossed
163883

[NAZ]

If you haven't already, better check all the build threads using auto trans to determine what stall converter you should use on a light car like the 33HR. Or better yet, consult a converter builder like Hughes (AZ), FTI (FL), or ATI (MD). IMO, it's better to error on the loose side than on the tight side. Get it wrong and you won't be happy with the results and it may be hard to keep the thing stopped at a traffic light.

[Jeff33Ford]

If you haven't already, better check all the build threads using auto trans to determine what stall converter you should use on a light car like the 33HR. Or better yet, consult a converter builder like Hughes (AZ), FTI (FL), or ATI (MD). IMO, it's better to error on the loose side than on the tight side. Get it wrong and you won't be happy with the results and it may be hard to keep the thing stopped at a traffic light.

Thanks, the convertor I have is a TCI 432800. It is advertised at 3400 stall so we will see how it does. Seems like a pretty safe bet from all the info I been gathering from here on the forums

[cob427sc]

Naz is 100% correct. My 33 is a little different using a 58 Buick nailhead engine and a 64 Buick transmission. I made the mistake of using the stock convertor from a 5000# stock Buick Wildcat. Pulling up to a stoplight requires immense pressure to hold the car even at idle. Planning on changing out the convertor one of these days. Otherwise the tranny works fine.

[narly1]

I dealt with Chris at Lentech and ordered a torque converter for my specific 302 build and AOD transmission combination.
Based on the torque/hp dyno results from an almost identical build and predicted vehicle weight of 2200-2400 lbs he suggested their 7902-CONV-11SS which is 11.25", 2200-2400 stall speed, coupled spline unit.

[edwardb]

In the truck manual, Factory Five says "If using an automatic transmission, we recommend a torque converter stall speed of 3500 RPM due to the weight of the finished car." I'm guessing the hot rod manual says the same, although I haven't personally seen it.

For my truck build, have a GM 4L65E Performance Transmission Level 3 from Gearstar. They installed a Precision Industries converter with a 3400 RPM stall speed. The build isn't done yet. But I've driven it in out and of the garage multiple times, up/down the driveway, and a couple several mile go-kart runs. It seems perfect. Not hard to hold in place with mild brake pressure.