1966Oldsmobile

Hi Transmission Experts! As you know I´m a Oldsmobile / Classic car newbie, so I need your help?

Found close to my home a TH 700 Transmission. Saw this number on the transmission: 23 215 0600/1F5122392/MD8/8642316.
Does it fit into a ´66 F85 330cui and is this 4-speed a good choise?

Thank you!

Olds64

Do you mean a TH 400 transmission? If it has a BOP bell housing it should fit your engine. You also have to know if it has a long tail shaft or a short tail shaft. The short tail shaft TH 400s came in B/C bodies I believe. Plus, the TH 400 is a 3 speed transmission, not a 4 speed.

If you post a picture we can tell you if it has the BOP bell housing.

I just thought you might have been referring the the 700R4. The 700R4 is a good transmission but it doesn't have a BOP bell housing. You would have to get an adapter to put it on your engine. Plus, I've heard the 700R4 has odd gearing requiring you to change the rear gears as well. The 2004R is a better 4 speed transmission for Oldsmobiles since they came with a BOP bell housing in the 80s.

1966Oldsmobile

???? I do have just one picture? A small one, do you need it larger?
The seller dont know the car it is from. He wrote TH700. What does the number mean?

What else can help you do identify? Let me know!

Thank you very much

ent72olds

Looks like a 400.

joe_padavano

Look again - that's a Chevy bellhousing. No, it won't fit. It's usually a good idea to do some research before spending money. There are a lot of threads here about the 700R4 and 200-4R. Your stock trans is an ST300 (it is NOT a Powerglide).

1966Oldsmobile

My stock transmission is a Jetaway! Am I wrong? What does not fit? The lenght, the bellhousing. What about the identification number?
.... Thanks for helping

joe_padavano

Junkaway, er, Jetaway was Oldsmobile's marketing name for the ST300.

Yes.

A Chevy bellhousing does not bolt to an Olds block. You can get an adapter kit, but the bigger question is, what trans did you buy? Is it a three speed TH400 or an overdrive 700R4? Installation problems will be different depending on what you have. Either one is a different length from your current trans.

No clue. Have you tried putting that number into Google?

Professur

http://www.nastyz28.com/chevy-transm...tification.php

Olds64

The link Professur provided shows good outlines of transmission pans. You can easily identify that transmission from those. Also, on the NastyZ28 page Professur provided there is an additional link that lists GM transmission codes. According to their list the "MD8" code indicates your transmission is a 700R4.

I'm sorry, I can't tell from the picture you posted if this is true. The picture is too small.

If so, as others have said you will have to get an adapter plate to bolt the transmission to your 330. Plus, you will probably have to modify the driveshaft and adjust the transmission crossmember.

The 700R4 is a good 4 speed, but this conversion isn't for the faint of heart. You're probably bettter off just putting a filter in your current transmission and driving it until it dies.

1966Oldsmobile

Now a larger picture. 16 bolt oil pan, 30 inch long. What do I have to do that it fit in my ´66 F85. It is cheap and not far away!
No Olds Transmissions in Europe and the shipping cost from the US to Europe will kill me!

Thank you

matt69olds

Thats a TH700 trans, judging from the extension housing it came from a Camaro or Firebird. The extension housing has the provisions for a torque arm mounting point. You could use this trans, if your willing to set use the car for a TV cable, use a adapter plate for the different bellhousing patterns, and modify the driveshaft.

Professur

That trans may be cheap ... getting it to work for you will likely cost as much as the shipping you're trying to avoid though.

Bellhousing adapter
Cross member
TV cable bracket
Universal TV cable

Then you have to have a custom drive shaft cut. And after all that, you're still putting in an unknown quality transmission that could die on you in a week.

1966Oldsmobile

Your right Professur!

Used Transmission in the USA, quality unknown: 600$
Shipping to Austria: 700$
Taxes: 250$

So, bellhousing adapter and Cross member I can do in my own machine shop. The other stuff I have to order........The custom driveshaft....no clue

How do I know that the Trans will work, when it is not build in? But it is a TH700, isn´t it?

Thanks a lot

Professur

It's definitely a 700. This page shows one from the same side http://www.hotrodders.com/articles/T...ification.html


$700 shipping? yikes. I don't think Fiat pays that much to ship an entire car. If you can handle making the plate and crossmember, go for it ... hit the seller up for the TV and bracket ... he's got to have them too. Drive shafts aren't that expensive. Just a pair of ends with a steel (or aluminium) tube welded in the middle. Most expensive part is getting it balanced right.


Even if it's wore out, a rebuild kit is only about $150. If you can machine the plate, building the 'special' tooling for that is easy. Don't let anyone tell you they're hard to do. They're not employing rocket scientists at the trans shops. Get yourself the good manuals, take your time, keep everything clean. Nothing to it.

joe_padavano

You don't need a crossmember - simply slide your stock crossmember back to where the new trans requires it and drill mounting holes.

As for the cost and the unknown condition of the trans, I would suggest that the less expensive route is to buy a rebuilt, beefed up 200-4R. First, neither the 700R4 nor the 200-4R are particularly strong in stock condition. Spending all this money on a trans of dubious condition is a big risk. A properly beefed 200-4R eliminates that concern. It has several other advantages, namely it bolts to the Olds motor with no adapters required, and it uses your stock driveshaft with no modifications required. That's probably the lowest cost path for you in the long run.

Seff

I've seen 200-R4 transmissions for sale in Denmark - they ought to be in Austria as well.