Are TH350 and 700R4 interchangeable?
The cross member can be used in the same location, if you use a special 700R4 tail housing. Our #49 700R4 tail housing with transmission mount (7 3/8 inches long). This will move the mount to the rear 5 1/2 inches.
What transmission can replace a TH350?
By far the most popular conversion is swapping out an original two-speed Powerglide (PG) for a three-speed TH350. The TH350 is a bolt-in replacement for a PG, making this swap a relatively straightforward one that requires no crossmember or driveshaft modifications.
Are all TH350 transmissions the same?
Externally, all the TH350 transmissions look the same; however, internally there are some differences. Depending on the engine size of the car the transmission was removed from, it can have anywhere from 10 to 18 friction discs and 10 to 18 steel clutch plates inside.
How do I know if my transmission is a TH350?
Count the Number of Bolts However, you can tell if it is a TH350 or TH400 depending on the transmission oil pan’s shape. If the pan is square in shape and looks five-sided due to a cut in one corner, then you are dealing with the TH350.
Does a Turbo 350 transmission have overdrive?
Overdrive. The 700R4 has an overdrive while the TH350 does not. Overdrives allow for high-speed cruising, which saves fuel while lowering torque.
When did GM stop using the Turbo 350 transmission?
When combined with a 9.5” converter, the overall requirement is around 10 quarts. The Turbo 350 transmission, commonly known as the TH350, was a 3 speed automatic transmission that began phasing out the GM Powerglide in 1969. The TH350 then lasted 15 years before eventually being replaced by the 700R4.
Is the 700R4 transmission the same as the TH350?
The 700R4’s drive shaft yoke is identical to the TH350’s, so your old yoke should work nicely with the new transmission. The 700R4 was produced after all of GM’s engines went to the “corporate” Chevy pattern, which means that the transmission has a standard small-block Chevy bolt pattern.
What kind of transmission does a GM TH350 have?
Turbo 350 Transmission Specs. This transmission replaced the GM Powerglide automatic transmission, which was a 2 speed automatic transmission that was in production for 23 years. The Turbo 350, known by the name TH350, was used in nearly all GM rear wheel drive car and truck applications during its tenure.
What kind of transmission does a GM 700R4 have?
The Turbo Hydra-Matic 700-R4 is a very strong GM transmission and was used extensively in the GM family of cars for over 10 years. Because of the transmission’s overdrive 0.69:1 ratio 4th gear, the 700R4 also helped GM meet 1980s fuel economy standards.