How to identify a 700r4 transmission. . View the transmission pan located on the bottom of the THM700-R4. Aug 20, 2025 · The 700R4 is a great choice when it's time to upgrade your classic car or truck with an overdrive transmission. Another distinguishing feature is the rear output with four bolts. If it has a round one, it is a 4L60E. The number tells you the month and year the trans was built along with the version code. Here's what you need to know about GM's famous 4-speed automatic. The big cast-in MD-8 is just the RPO code and tells you nothing specific. The FIRST digit denotes to year model of the transmission. The 1993 LT-1 used a 4L60 with a round 5 pin connector on the drivers side where one would normally find the square 4 pin connector. This transmission has a rectangular pan with 16 bolts, five down each side and three across the front and back. Identification of the THM700-R4 automatic transmission is accomplished by locating visual clues separating it from other GM and Chevrolet automatic transmissions and by decoding the information found on the identification tag. Dec 15, 2011 · There were both 4L60's (the transmission formerly known as the 700R4) and 4L60E's installed in that year. Aug 29, 2010 · First thing you want to look for is the # on the passenger side of the rear of the case just above the oil pan on the case itself. NOTICE - First Digit 9 Denotes Both 1982 Model, and 1989 Model. Nov 15, 2016 · All 700R4s have a long code numbe stamped into the case in the rear - just about the tin oil pan. One way to identify a 700R4 transmission is by examining the bolts around the transfer case. Find out how to identify it by checking the transfer case bolts, the identification tag, or the fluid type. If it has a square connector, it is a 4L60 (700R4). Feb 27, 2023 · Learn about the 700R4 transmission, a 4-speed automatic with overdrive introduced by GM in 1982. buawib ormj rrdk zhiq gusulk pgn bsray nfqqt eic acqckcu