How can you tell a 700R4 from 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.

Is there a 700r transmission?

The 700R4, also known as Turbo Hydra-Matic, is a 4-speed automatic transmission that was launched by General Motors in the early 1980s. It is an upgrade to the 3-speed TH350 automatic transmission and older models of rear-wheel-drive cars.

What kind of transmission does THM 4L60-E have?

This booklet contains general description and the procedures necessary to repair, overhaul, or service the new THM 4L60-E electronic automatic overdrive transmission. The 4L60-E is a fully automatic rear wheel drive transmission. This unit is basically a THM 700-R4 with electronic controls added to the valve body.

When did the GM TH700R4 4L60-E come out?

This version is called the 4L60-E (or Early 4L60-E for our purposes). In 1997, the 4L60-E began to be released having received a redesigned case. This is the Later 4L60-E, discussed here. The 700 transmission has a main case of cast aluminum alloy with a length of 23-3/8″ long.

When was the 700R4 transmission replaced by the 4L60?

The 700r4 transmission was not electronically controlled yet; it was hydraulic pressure controlled with a TV cable, which acted as a throttle position sensor to control the gear shifting. In 1991~ the 700r4 transmission was replaced by the popular transmission 4L60.

When did the Chevy THM400 transmission come out?

THM400 – The THM400 was GM’s Heavy-duty 3 speed transmission used from 1964 to 1990. Used on large displacement, high torque engines and engines with towing packages. Generally found in Chevy & GM trucks, cadilacs and large displacement engined, full size GM rear wheel drive cars.

When did the 4L60E 700R4 transmission come out?

The one-piece case 4L60E was produced from 1993 through 1997. This is the easiest way to identify it. The 4L60 is the latter model 700R4 transmission, only the name changed, if you think you may have a 700R4 look here to identify it.

How can I tell if I have a 700R4 transmission?

However, there are some ways to determine if you have a 200-4r, 700r4, TH350 or a 4L60 transmission. The easiest way to identify if you have a 700r4 is to raise your car and check the bolts around the transfer case.

How can you tell a 700R4 from a 4L60E?