How do I know if I have a TH400 transmission?

It is identified easiest by its “375-THM” designation cast in the underside of the tail housing. The TH475 was an extra-heavy-duty version, and was found in larger trucks from 1971 on. If you are trying to determine the TH400 from another in a vehicle, a fast way to tell is to look at the kick down mechanism.

Which transmission is better th350 or TH400?

General Motors introduced the first Hydramatic transmission in the 1940 Oldsmobile. The Turbo 350 (top) and the Turbo 400 (bottom) are the quintessential GM automatic transmissions. Both are three-speeds, but the Turbo 400 is physically larger and designed more for the torque capacity of big-block engines.

Can you swap a 700R4 with a TH400?

Yes there are aftermarkets for both but stock, they’re the same and rated for the same input torque. If I was going to have a crappy TH 350 I’d much rather have a 700R4 which has a better 1st gear, and overdrive to boot.

How much HP can a TH400 handle?

About 400-450 HP/TQ is the limit on the stock TH400. With ONE almost free modification and some minor valve body calibration changes, 800 HP on an otherwise stock TH400 is not a problem if it’s assembled well (good endplay, etc), and the 34 element sprag is a wise addition above 450 HP or any drag usage.

Does a 400 Turbo transmission have overdrive?

The Turbo 400 has earned the reputation of a tough, reliable transmission that can survive harsh duty, but is there a better alternative? Although not often considered as such, much like the Turbo 400, the 4L85E is a solid contender for use in heavy, high-horsepower vehicles, and has the added benefit of an overdrive.

Is Turbo 400 the same as TH400?

They are, for the most part, interchangeable on the same vehicles; however, you would normally find the TH400 in larger engine applications because they are able to function more reliably at higher engine rpms.

Does a Turbo 400 have overdrive?

But the TH350 and TH400 three-speed versions (and their two-speed Powerglide cousin) fall short when it comes to highway cruising. The reason for this is the conspicuous lack of an overdrive gear.

Does Turbo 400 have overdrive?

Is a Turbo 400 the same length as a 700R4?

Registered. edit: okay, AA sez the 350 is 21.5″, 700r is 23.375″, 4l60e is 21.875″, and 400 is 24.25″.

Are all Turbo 400 the same?

Is a TH400 a 4 speed?

The TH400 is a 4 speed, unfortunately one of them is reverse:1poke: There is no way anyone will ever build a 4 speed th400, it would be like building a 8 cylinder 2 jz there is no room in there.

What do I need to know about the rs800p transaxle?

III- RS800P transaxle general description The RS800P transaxle is design to provide an infinitely variable speed range and reverse operation thru a single pedal control. This transaxle also offer an integrate differential function and neutral automatic braking.

When did the TH400 automatic transmission come out?

Introduced in 1964, the TH400 is an automatic shift, three-speed, longitudinally positioned transmission.

Is the ATI Turbo 400 a 2 speed transmission?

Today’s high HP racer needs a durable transmission with a less aggressive starting line ratio. Most racers achieve this by converting the Turbo 400 transmission to a 2-speed unit allowing them the ability to leave off the transbrake in 2nd gear. ATI now has an answer for this market and offers three variations of a 2-speed Turbo 400!