How hard is it to rebuild a Turbo 400 transmission?

The TH400 is also a very simple unit, and is relatively easy to overhaul. It does not require a lot of special tools, or special procedures. … Even so, the TH400 doesn’t need a lot of help or special aftermarket parts to be a reliable and durable transmission.

How long does it take to rebuild a Turbo 400 transmission?

Total time to disassemble, thoroughly clean, install new parts, reassemble was around 7 hours. But, this was my first time, and I was trying to learn something as I went (I asked about how everything works in relation to everything else).

How much is a Turbo 400 transmission worth?

selling it as a good unit and with a “it will work” or your money back warrantee, it should be worth $150-200. There are many shops that sell a stock rebuilt TH400 for $600.

How hard is it to rebuild your own transmission?

But rebuilding a transmission on your own is hard and there’s a chance you could damage it beyond repair if you don’t know what you’re doing. Heed our advice; take your vehicle to an experienced transmission rebuild mechanic .

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How much horsepower can a Turbo 400 transmission 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.

Can I rebuild a Turbo 400 transmission?

Although often taunted as a bit heavy and power robbing, the TH400 makes up for it with its great strength and long-term durability in heavy-duty service. The TH400 is also a very simple unit, and is relatively easy to overhaul. It does not require a lot of special tools, or special procedures.

How does a Turbo 400 work?

The TH400 transmission takes advantage of an electrical slide switch controlled by the throttle linkage. On the other hand, the TH350 uses a mechanical cable kick-down that is connected to the throttle linkage. Despite the difference, the TH400 is considered the heavy-duty version of the Turbo-Hydramatic 350.

Which transmission is better TH350 or TH400?

The TH350 uses a mechanical kick down switch, whereas the TH400 uses an electric one. … A lot of people claim that he TH350 has less drivetrain loss than the TH400, which means that all things being equal, the TH350 is going to get more power to the rear wheels from an engine with equal power.

What’s the difference between Turbo 350 and Turbo 400 transmission?

The TH-350 was a low-torque transmission that was used in heavy cars. With modification, the TH-350 could be used as a high-torque transmission in a light car. The TH-400 was a high-torque transmission that was used in heavy cars — it was a much stronger transmission than the TH-350.

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Is it cheaper to rebuild a transmission or replace it?

A transmission rebuild will be less costly and not done on the factory level. In addition, you or the mechanic will be putting in new parts like the seals, gaskets, clutch, and bands. … The auto repair shop will have to take apart the transmission and clean the parts before considering whether to put them back in or not.

Is it worth rebuilding a transmission?

Rebuilding a transmission can save you a lot of money over the short-term, while keeping car payments out of your monthly budget. For many, rebuilding their transmission is worth the initial cost. Rebuilding a transmission may cost you twenty-five hundred dollars or more, which is a significant chunk of change.

How long does a rebuild transmission last?

However, if a rebuilt unit is paid more attention and care in terms of small, regular maintenance jobs, this ‘like new’ unit could conceivably last as long as any new unit – around 150,000 to 200,000 miles on average.

How much horsepower can a Turbo 350 handle?

The Stage 1 TH350 is rated up to 450 hp. Those seeking something a little stronger can check out the Stage 2 version (PN PA35102) that holds 550 hp and retails for $1,500 with a real world street price of $1,175 from most vendors. Both transmissions come with a standard one-year warranty.

How much horsepower can a stock PowerGlide handle?

With all the available upgrades, both the Powerglide and the TH400 are capable of withstanding an incredible 3,500 horsepower.

What transmission is best for racing?

5. Sequential Manual Transmission. The sequential manual transmission is rarely used in passenger vehicles but it is a top choice for racecar drivers. This highly sophisticated unit uses the feel and control of the manual transmission with the swiftness and precision of an automatic.

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