WebOct 20, 2011 · 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. WebIDENTIFICATION - 330 3spd, RWD or 4WD, HD Muncie Cast Iron case and extension housing with 11" case and 7-bolt side cover. Fully synchronized with 36 tooth synchro rings. This is the only GM 3 speed with the same bearing front and rear. This transmission is found in performance applications.
Chevy Transmission Identification and Decoding - NastyZ28.com
WebOct 20, 2011 · General Chevrolet Transmission Identification Transmissions are marked and identified by: - Casting numbers on the case, extention housing and side cover (on … WebApr 10, 2024 · Find The ID Tag On The Transmission Housing There is always an identification tag on the transmission itself. For older 3-speeds that were used from 1939 - 50, the tag is located on the top of the bell housing. This tag will have a series of numbers like 78 - 7006 (which represents the ‘39 - ‘50 case). nz herald todays covid cases
GM Transmission Identification Guide: Chevrolet, Pontiac, Buick, & More
WebNov 20, 2024 · GM 3 speed ID. Discussion in 'The Hokey Ass Message Board' started by bustingear, May 16, 2007. Page 2 of 2 < Prev 1 2. Joined: Oct 26, 2024 ... As long as … WebSep 23, 2024 · The casting number on the passenger side of the transmission is another easy way to identify the T-85. The transmission model is part of its casting number, usually with an additional letter … WebJan 17, 2013 · Automatic Transmissions Some transmissions may have a code stamped into their case or a tag riveted to them. According to Koval, the easiest way to identify … mahabal foundry