This is a 72 Buick estate wagon. Body is long gone but I'm going to rebuild the 455 and th400. Would it be a short shaft or long th400? I am a few hours away and was curious to know.
The THM 400 in an Estate Wagon will have the long tail shaft. I'm actually using one in my Sportwagon. I just had a new driveshaft made but depending on what you put it in, you may just be able to shorten your existing driveshaft. Paul
Yep, long-shaft TH400 in the full size cars................ Say Paul, is that Burgundy Mist for color on your sport wagon there???
The 67-69 Sportwagon 400 used the long tail 400 (actually medium tail, but most refer to it as long) as they are 120/121" wheelbase cars. The 70-72 Sportwagon used the short tail as the WB is 116. Yes, a long tail will fit if the driveshaft is shortened. Another minor point on the 67-69 Sportwagon is that it used a unique tailshaft housing that accepted the ST300/TH350 trans mount. The TH400 mount was wider and won't fit the housing. Am pretty sure that most replacement mounts fit both trannys today, but back then there were two versions of the mount. Mark
I don't get it. Ok, I guess I should have stated the motor was making so much torque that I would need a larger diameter, thicker-walled driveshaft. That's why I had one made. :Smarty: :Smarty: Paul :moonu:
See you understood me. p Thank goodness Kurt had the forsight to put a driveshaft from some NC NASCAR shop in da wagon, I should be good for the next power upgrade :Brow: :moonu: Beth :grin:
Beth, if you ever break that driveshaft you are either doing something really right or something really wrong! :laugh: It was made in the middle of a run of driveshafts for Robert Yates Racing and it Was Race Lutz that was responsible for it....that shaft also came out of the burned car
See Kurt, I knew you would come up with the correct answer. I can't remember all the stuff ou: Beth :grin:
