Roto-5 Tranny ……… Your Out of There!!!!!

[911pilot]

Again, I did not to go with the TH200 instead, I went with the 700R4 (1990 or older) worked great and again the amount of firewall fab work was minimal.

[62cutlassconvert]

Sorry 911, I think he’s talking to me..

[911pilot]

My bad 🙂

[captiannapalm]

yes i was 62.sorry pilot

[captiannapalm]

So I found a TH200.. The seller gave me the tag number 84-01-13245, and I think the casting number 3fm320825. I have searched all over , and cannot find any info. Anyone?

[62cutlassconvert]

Make sure its a th200C which has lock up. You buying rebuilt or used? I wouldn’t buy a used one , you need to buy a rebuild by a shop that knows them and how to do the HD iimprovements. You might buy a core cheap that is guaranteed rebuildable if you have an experienced shop in mind that can build it how you want it done but then the shop can usually supply the core at a cost and you don’t have to worry about getting a trashed out core that can’t be rebuilt. Don’t have any idea what the numbers mean, check your shop.

[joe_padavano]

[quote quote=14172]So I found a TH200.. The seller gave me the tag number 84-01-13245, and I think the casting number 3fm320825. I have searched all over , and cannot find any info. Anyone?[/quote]

3FM320825 is the VIN derivative.

3 = Oldsmobile Division
F = model year 1985
NOTE: the other tag indicates a 1984 model year. Are you sure this is an “F” and not an “E”? E would be correct for 1984.
M = Lansing assembly plant
320825 = last six digits from the VIN of the car it came from.

[62cutlassconvert]

1984 should be a TH200C with lockup. There will an electrical connector on the left (driver) side. It will have either 1 (internal al ground) or 2 pins (external ground). Make sure you can get your money back if it’s not rebuildable. Use a shop that is performance oriented to the TH200 like REMAC. ATI or Turbo Action who make cast alum pans for these trans may be able to recommend a shop in your area.

[captiannapalm]

I mentioned in a previous post abouta shop in CA. The guy was pushing a C-4 on me with a ford driveshaft.. I talked to him about the 200c, and he said that the 200c uses a computer… I know the 200R4 does. Anyway then he was pushing a 289 motor. I think he got clueless when I told him what I had. Just an FYI.

[62cutlassconvert]

You need a controller to provide 12volts to the 200c in order for the lockup to engage. I haven’t looked back in this post but I think we discussed the B&M adjustable lock up controller that integrates with your stop light switch, or you can just use a manual switch to provide power.

I believe the 200r4 is the same, someone can confirm.

The 200c is a manual shift linkage. There may be computer controlled 200r4 but the ones I have used are a manual shift linkage and they re plentiful.

I’d find another trans guy.

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