health and wellness | February 17, 2026

Is 700R4 a good transmission?

Is 700R4 a good transmission?

The 700R4, produced by General Motors/Hydramatic, is considered one of the best overdrive transmissions ever made. This transmission had a lower first gear ratio, which was good for performance at low vehicle speeds, while the 30% overdrive provided significant fuel economy improvement.

What vehicles did the 700R4 come in?

Vehicles Equipped the 700R4

  • Blazer: 1982-1991.
  • Caprice: 1982-1992.
  • Corvette: 1982-1992.
  • Camaro: 1983-1992.
  • Suburban: 1984-1992.
  • Astro Van: 1985-1992.
  • S10 Blazer: 1989-1992.
  • S10 Pickup: 1989-1991.

What is the difference between a Turbo 350 and a 700R4?

The 700R4 has an overdrive while the TH350 does not. Overdrives allow for high-speed cruising, which saves fuel while lowering torque.

What’s the difference between a 700r and a 4L60E?

You can’t tell the difference between a 700R4 and a 4L60E by the oil pan as they are nearly the same. If the transmission has a large 18-pin electronic connector above the passenger side pan rail, it’s a 4L60E, as seen here. If it has a cable connection near the cooler lines on the passenger’s side, that’s a 700R4.

Does a 700R4 need a computer?

To run a 700-R4 trans behind a carbureted engine without a computer, at the very least the TV cable must be hooked up to the carburetor and properly adjusted. Not just a simple kickdown cable like your TH350 analogue, the TV cable controls line pressure and shift points.

How many gears does a 700R4 have?

four speed
700R4 Transmission The 700R4 is a four speed automatic transmission, with a half-hour overdrive in fourth gear. This transmission was created by General Motors, however it is also sometimes known by the name Hydramatic.

How do I identify a 700r transmission?

If you can see it correctly, you will find an identification number of 7-8 letters and numbers.

  1. The 1st number is the year model of the transmission.
  2. The next 2 or 3 letters identify the model of the transmission.
  3. If you find 2 letters, the transmission is made between 1982-1985.
  4. Wirings = 4L60.
  5. Aux TV Cable = 700r4.

Is a 700R4 computer controlled?

You need to distinguish between the 700-R4 trans (which can be set up to run without a computer) and its later descendent, the 4L60E family (which is a fully electronic, totally computer-controlled transmission).

Can you run a 700R4 without a computer?

What year 700R4 is best?

Generally, 1987 and up TH700R4s or 1990-’93 4L60 units are the most desirable. Before trying to install this transmission in your vehicle, you should thoroughly check the unit and refurbish it, if necessary.

How can you tell if a transmission is a 700r?

Can you run a 700R4 without a TV cable?

There are no TV cable, mechanical speedometer drive, or governor provisions. To run a 700-R4 trans behind a carbureted engine without a computer, at the very least the TV cable must be hooked up to the carburetor and properly adjusted.