TexasGunner

My Brother surprised me today with a Transmission. He knew I was looking for one and bought one for me. I am very appreciative but I think it is the wrong type. I myself may be wrong. I am sill learning about classic olds parts. The bell housing looks right but the markings from my understanding are wrong or not where they suppose to be. So my question is will this fit a 68-72 350 Rocket?

oldstata

Can you get a pic of the pan it's the easiest way to tell


And looks to be a BOP trans Buick,olds,Pontiac

TexasGunner

I will take them and post them up in the tomorrow.

svnt442

That looks like a TH350C to me. This one has a dual pattern bell on it, but it's mechanically the same.

olds 307 and 403

It may also be a light duty TH250C. Check for a band adjustment bolt near the cooler lines. With the convertor locked, it runs 2-300 rpm lower. You need a lock up convertor, they are different.

TexasGunner

TexasGunner

Its a 350 it has 13 bolts. The drive shaft that came with my Olds fits the tail, so that a good sign. I would like to know what year and model this came out of.

svnt442

Make sure you get a clip for the governor cover.

lemoldsnut

Looks like a lock up th350 those are usually 79 and newer

nsnarsk65cutlass

Yes,lock up torque converter by the blue 4 pin connector lh , th350 bop pattern.

olds 307 and 403

It is a TH250C, 81-86? A good light duty trans. I got 400,000 km out of one behind an Olds 307 and 350. I put behind a 403 thinking it was a TH350C, smoked pretty quick. Behind a stock 350 it may last a long time.

Majic Jack

GM saved eight dollars by reducing the number of clutches, pistons, etc. per unit on the 250. Sell a million cars, that is eight mil. These pieces may be added on a rebuild thus converting a unit into a regular 350. Something to consider.

matt69olds

Thats a TH250. I can see the band adjusting screw above the accumulator cover. If its a MILD 350 engine the trans might live. They are a very light duty transmission.

svnt442

It's a TH350. The TH200 does not use a vacuum modulator.

IMG_125420Custom20Custom_zps1b3e6cb1.jpg

oldstata

Not positive but there should be a flat part above the pan passenger side that as a make year and the last six of a vin

matt69olds

Your correct, however, the TH200 also has a one piece trans case (no removable tailhousing). The TH250 DOES have a modulator, removable tailhousing, and a band adjusting screw.

TexasGunner

I could not find it. The only numbers I found on the trans are on the pic posted above. But I decided to just keep the trans for a core if I ever need one in the future. But I think that it is a 83 BOP TH350c with electronic lockup convertor.