I'm thinking of using this trans in my Model A roadster. It's been sitting in my garage for over 25 yrs. I just power washed it off and I'm wondering if it's worth using. I noticed that it doesn't have a removable tailshaft. This was a good ****** when I took it out. I was thinking to have a ****** guy go through it,but if it's a ******* then I would have second thoughts. Thanks, Bill
I'd at least replace front, rear seal and change filter and pan gasket. ****s pulling it back out for a couple dollar part. I'm sure more experienced transmission guys can also make recommendations, the parts above are about as far as I go into an auto trans.
I'm not seeing a vacuum Modulator either. it is an oddball to me but that doesn't mean that you shouldn't use it. I would be interested in knowing ig it is a T350 or some other variation with an odd number that we are not accustomed to.
I'm not the trans expert around here, but I think that is a TH200. Light duty trans from late 70's- early 80's. Don't put too much horsepower to it and it should(maybe?) be fine in a light Model A.
TH200 R4 it is. Still an OD unit. It may pay to have a shop look it over and I'd say a full rebuild may be the way to go. Some shops have a reasonable carry-in service.
Yup, It has 11 pan bolts. Here's the crazy thing, A guy gave me a 77 Impala which had a remanufactured motor( 350) and ******( I think from Sears) in it , which I took out and put in a 79 El Camino and ran until the body gave up. I rebuilt the 350 and it's been in a friends 36 Ford pickup for a good while . This is the same ****** that was in those two heavy vehicles with no problem. But since I'm using a tri-powered 327 in my roadster, I'm leery about using it . I knew you guys would nail this pretty quick and I thank you . Bill
They're (TH200) considered to be a "metric" trans. The Stock and Super Stock drag racers have taken to them due to their overall weight, internal rotating m***, and gearing. Of course, they are heavily modified to hold up. You're appears to have an electronic speedometer. Rebuild it, shift kit installation, and don't continually beat it like it's an ARMY mule, and it'll be fine. Do an online search for TH200 in drag racing. I am Butch/56sedandelivery.
Thanks Butch, I'm running a banjo rear with a Winters center section and 820-15 rear tire , neither like to be treated like an army mule Thanks again, I appreciate it. Bill
48stude: did you figure out from the measurements if it's a TH200 (not overdrive) or a TH200-4R (overdrive). I'm curious, since people said it was both in this thread. Gotta56forme/Scott
TURBO HYDRAMATIC 200 (METRIC) http://www.700r4l60e.com/transmission_gm.html General Motors 1976 & Later 11 Pan Bolts THM200 (TH200) - Light duty, "Metric" 3 speed transmission. Gear ratios on these units were 2.74 1st gear, 1.57 2nd gear, 1.00 3rd gear.
wrong that is a 200c not a 200r4.It is a 3 speed not an OD trans. It is a good little trans though.Like the 700 4r and the 200r4 the TV cable adjustment is critical
As Gregg mentioned above; THE TV CABLE ADJUSTMENT IS CRITICAL TO THE LIFE OF THIS TRANS. The cable is NOT a kick-down like a TH350, but a throttle pressure control. I burned one up after less then a mile due to a broken cable end.
Maybe one of you transmission guys can answer this. Would a 200 4r live behind a 450-500 hp small block in a model a coupe?,is it the same trans used by grand nationals because i see them run 11 second runs all day but always hear that they are weak,so what is the real deal?
For the time being , I've lost interest in using this transmission. That tv cable turns me off. I took a better look at that cable, until this thread enlightened me, I thought it was just a kick down . I see a spring for the pressure and an adjustment. Wouldn't look that great on a traditional style build. To be more blunt , it's fugly. But, it's certainly been an education for me and fun. Thanks again, Bill
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