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Technical Information

General Motors Ratios

TRANSMISSION 1ST 2ND 3RD 4TH 5TH
Borg-Warner T-5
(GM Applications)
2.95 1.94 1.34 1.00 0.63
Borg-Warner T-5
(GM Close Ratio)
2.75 1.94 1.34 1.00 0.74
Borg-Warner T-10
2nd Design
2.64 1.61 1.23 1.00 n/a
Borg-Warner T-10
2nd Design
2.88 1.74 1.33 1.00 n/a
Borg-Warner T-10
2nd Design
3.44 2.28 1.46 1.00 n/a
GM Muncie
(M-21, M-22)
2.20 1.64 1.28 1.00 n/a
GM Muncie
(M-20)
2.52 1.88 1.46 1.00 n/a
GM Powerglide 1.76 1.00 n/a n/a n/a
GM Turbo Hydra-Matic 350 2.52 1.52 1.00 n/a n/a
GM TH-400 2.48 1.48 1.00 n/a n/a
GM 200-R4 2.74 1.57 1.00 0.67 n/a
GM 700-R4 3.06 1.62 1.00 0.70 n/a

General Motors Dimensions

TRANSMISSION case to
external housing
overall length bellhousing
to mount
POWERGLIDE SHORT 15 1/4" 24 1/4" 19 1/2"
POWERGLIDE LONG 15 1/4" 27 1/2" 20 1/2"
T-200 & T-200C 27 5/8" 27 5/8" 20 1/8"
T-250 21 5/8" 27 5/8" 20 3/8"
T-350 SHORT 21 5/8" 27 5/8" 20 3/8"
T-350 LONG 21 5/8" 30 5/8" 20 3/8"
T-400 SHORT 24 3/8" 28 1/4" 26 3/4"
T-400 LONG 24 3/8" 34" 28"
200R4 27 3/4" 27 3/4" 26 7/8"
700R4 23 3/8" 30-3/4 22 3/8"
4L60 23 3/8" 27 3/4" 22 3/8"
4L60-E 23 3/8" 27 3/4" 22 3/8"
4L80-E ??? 31 1/2" 30 3/8"