Is a 700R4 electronic?
Although the 700R4 is not an “electronically” controlled transmission, this feature was controlled by a PCM. We offer a lock up kit under Part # 23-700R which can be used with carbureted engines or applications outside of the GM engine family.
How does the 700R4 work?
The 700R4 uses a cable that connects the throttle linkage to the transmission’s throttle valve (TV) in the valvebody. The cable moves the throttle valve in the valvebody and increases transmission line pressure as the throttle opens.
Does a 700R4 need lockup?
The GM 700-R4 & 200-4R transmissions utilize a lock up converter to help create a more efficient transmission. This primarily had to do with what type of engine was being used with the transmission, as well as, under what circumstances the lock up needed to be turned on or off for maximum efficiency.
What does a lockup switch do?
If you’re unfamiliar with exactly what the torque converter lock up is or does, the easy answer is, the lock up clutch takes stress off the fluid coupling of the torque converter and it helps decrease the amount of heat being generated at higher cruising speeds.
What engines are compatible with a 700R4 transmission?
700R4 Vehicle Compatibility – Makes & Models
| MODEL | ENGINE |
|---|---|
| CAPRICE | 3.8L / 5.0L |
| CAMARO | 2.8L / 5.0L |
| SUBURBAN | 6.2L |
| S10 PICKUP | 2.5L / 2.8L |
How does a 700R4 shift into overdrive?
All automatic transmissions use hydraulic pressure to apply friction components; either bands or clutches shift into each gear. The 700-R4 (as well as the 200-4R and the 4L60) uses a cable (called the throttle valve, or TV cable) connected to the throttle linkage to establish that pressure.
At what speed should a 700R4 shift into overdrive?
We will say that, when properly adjusted, the First-to-Second shift should occur at 15-20 mph; Second-to-Third shift at 25-30 mph; and Third-to-Fourth shift at 40-45 mph.
What is the overdrive gear ratio on a 700R4?
TH700R4 Transmission Ratios & Specs It features a 30% overdrive, which provided significant improvements in fuel economy over the three speed TH350, whose tallest gear was direct drive (1:1). Also beneficial, the 700R4 has a shorter 1st gear ratio (3.06 as opposed to 2.52).
How do I know if I have a 4L60 or 700R4 transmission?
If you find 3 letters, the transmission is made between 1986-1993. The last way to identify if it’s a 4L60 or a 700r4 is to look at the rear of the transmission for the Aux TV Cable or wirings, as discussed before. Wirings = 4L60 Aux TV Cable = 700r4
What is a K case 700R4 transmission?
The name “K-case” came because the transmission case was stamped with a “K”. The K-case 700r4 transmission had a thicker transfer case and was stronger because it was made for the heavier 4×4 trucks. You would find these in the 1980’s trucks, and this transmission was very coveted because of the strength of the 4×4 offroad-community.
What kind of transmission does a Chevy Blazer have?
You usually find the 700r4 transmission in GM cars like the Chevy Blazer, Suburban, Camaro, Corvette, Impala, and even in Oldsmobile Cars with a lot more. To mention all cars, this transmission was fitted in; the list would be very long. A lot of people like the 700r4 because of its excellent durability.
What kind of transmission fluid does a Ford 700R4 take?
In summary, the 700r4 transmission was a 4-geared hydraulic automatic transmission with the 4th gear, an overdrive gear (30% increase). The transmission was made between 1982-1992. It had a case length of 23.5″~ and a weight of 170 lbs~ without fluid inside it. The recommended transmission fluid is Dextron VI, with a capacity of 11 Quarts.