Is the GM 350 TH400 the same as the TH350?

Is the GM 350 TH400 the same as the TH350?

The TH350 doesn’t actually share any parts with the TH400, but the fundamentals for rebuilding it are the same, as is the basic procedure. The TH350 is slightly smaller and has lighter internal components, but uses the same basic principles to provide three forward speeds and one reverse.

Is the TH350 transmission good for off road use?

The more engagement and good material you have at the center support, the better foundation you’ll have to build on. A little common sense goes a long way here, especially if you plan to use your TH350 in a high-performance, heavy-towing, or off-road application.

Where are the seals on a TH350 transmission?

Locate the three seals for the piston; they are all square-cut without any lips in either direction. Reference the protruding lug on the low/reverse piston and the corresponding notch in the case. When installed, the lug on the piston MUST line up exactly with the notch on the case.

Where to install snap ring on Chevy TH350 transmission?

Install the snap ring and release the spring compressor. Make sure that the ends of the snap ring are between the raised areas of the spring cage. Clamp the output shaft in a vise with soft jaws. Remove the bushing inside the front of the output shaft.

Can a TH350 be converted to rear wheel drive?

This doesn’t work for NP203 or NP205 transfer cases as they have even shorter shafts in their TH350s and the short rear wheel drive tranny isn’t splined far enough for that conversion. The output shaft is the first part in and the last part out of the transmission.

Is it possible to shorten the driveshaft on a TH350?

Shortening the driveshaft would be a simpler solution, IMO. uuummm You have a long shaft tranny. You need a short shaft tranny in our cars. You cannot just change the back of the housing. It’s the shaft that runs through the whole tranny that will be to long.

How big is the tail shaft on a TH350?

Today i picked up a th350 with the 9″ long tail shaft housing. Is it easy to change out to the 6″ tail shaft housing or would it be easier to just get a shorter drive shaft made up? It most likely depends on how much $$$ you want to spend on it.

What kind of casing is a TH350 transmission made of?

The transmission casing is made of cast aluminum. The TH350 was also known for its quite short length, with an overall length of 21.75”. That also converts into a lighter transmission that carries a weight of 120 pounds. The TH350 takes about 4 quarts in the pan, and then requires additional based on the torque converter being used.