Durango_Boy

I'm looking locally within my sate for a used TH200R4. I have a search engine designed for a world network of salvage yards and junk yards. I found during the search process that there are three options.

1: W/O Overdrive
2: W/ Overdrive W/O Multifit Case
3: W/ Overdrive W/ Multifit Case

Obviously I don't want #1 because that defeats the whole purpose of getting the transmission.

My question is, do I want a multiit case or not and what's the difference?

exdrag77

I believe a multifit case has a larger bellhousing that has several engine patterns. If I were planning on keeping it, I would go for no mulifit case. If there was a chance I was going to sell in the future, the multifit would appeal to a larger audience. Of course I don't know about clearance with the larger flange so that may be an issue.

Durango_Boy

Cool, but either will fit my 350/400 SBC blocks?

682XLR8

The trans BTO sent me is a mulitfit-case

Durango_Boy

I'm guessing the multi's are for 6cyl cars too...

CA-Legal-Vette

This is the one that I ended up with. I'm not sure about the V6 fit, but it will work with both Chevy and Buick patterns. I had no interference problems with the extra "ears" on top of the tranny other than bumping the sides of the tunnel while installing it.

I'd agree that you want the overdrive. If not, why would you bother using this tranny? I would, however, be concerned about w/o multifit case option. I don't know all of the cars that these trannys were originally on, but I do know that they were used on Caddys and Buicks. I'd be nervous that the one that it wouldn't fit would be yours.

Durango_Boy

Good call...safer to get the miltifit...

Artsvette73

Mine came out of a Pontiac Bonnivlle milti flange. It's all good

comp

so just use that case ?

Durango_Boy

I'm not sure what you mean...I was just askng what engines and options the multi had opposed to the non-multi and what it was gonna fit?

1979toy

You must use a multi-fit case. The only other case only fits the Buick, Oldsmobile and Pontiac series of engines.

Here are some 2004R codes that identify what vehicle they come from.
TH-200-R4 ID's:
ID Year(s) Application
KZF Olds 442/Hurst
CZF 85-88 Monte SS
CRF 85-88 LG4 305 powered Monte Carlos/Pont Grand Prix
BRF 86-87 GN/T-Type/Turbo Regal
BQ 84-85 GN/T-Type/Turbo Regal
BR 83 Model T-Types
TAF 89 Turbo Trans Am
OZ Hurst Olds
OM Olds 350 Diesels
OG Olds 307
BY V-6 252 Cars
AA and AP Cadillac's

There is a number plate riveted to the side of the case.

The letters you’re looking for will be located on the tag which is on the passenger side near the tail shaft. The sequence will be something similar to this:
306-2t83ogi61
The ID # above being from an Olds 307 as seen in the previous listing.

comp

i was thinking you ment the BOP case's where for 6cyl cars

Durango_Boy

Just asking if they were on the same list.

comp

don't know

Durango_Boy

I'm looking at a trans to buy. Joplin MO, which is driveable. It's from a 1986 Pontiac Parisienne. It's a multifit case, and was just rebuilt. $250. Add gas to pick it up, and that's a $350 transmission. Then I have to buy the shift kit. Overall, I think I'll pay $500 for this whole project.

73jst4fun

Sounds like a really good savings, I hope it works out fou you, keep us posted. After doing the research and the Forums help I'm going the BTO route and the TH2004R stage 2, if I have some problems they can sort it out with me......

Durango_Boy

I did find another rebuilt multicase for under $500 if anyone wants to PM me.

l88rocket

If you are making any hp at all you don't want a stock 200r4,in stock form they are very weak and will only support about 350 hp.A built 200r4 will take clear up to 1000 hp,but the are pretty costly.

Durango_Boy

I will have, guessing on the build, maybe 450HP at the flywheel. At the wheels, who knows. I also know that I will not ne abusing it. I tend to baby my engines more often than not. I ave my fun while driving, not WOTs.