Transmission Info

Transmission Ratios : 1
Transmission/Gear
1st
2nd
3rd
4th
5th
6th
Reverse
Powerglide
1.76
1.00
-
-
-
-
1.76
Powerglide
1.82
1.00
-
-
-
-
-
TH200-4R
2.74
1.57
1.00
0.67
-
-
2.07
TH350
2.52
1.52
1.00
-
-
-
1.93
TH400
2.48
1.48
1.00
-
-
-
2.00
TH700-R4
3.06
1.62
1.00
0.70
-
-
2.29
4L60 / 4L60-E
3.06
1.62
1.00
0.70
-
-
-
4L80E / 4L80-E
2.48
1.48
1.00
0.75
-
-
-
C4 & C6
2.46
1.46
1.00
-
-
-
-
727
2.45
1.45
1.00
-
-
-
-
904
2.70
1.54
1.00
-
-
-
-
Borg-Warner T56
2.97
1.94
1.35
1.00
0.84
0.62
3.38

Overall First Gear Ratio : 1 (Tranny Ratio x Rear Gear Ratio)
This indicates the mechanical advantage your car will have coming off the line - higher number is better (up to a point)
Tranny/Rear Gear
2.41
2.56
2.73
3.08
3.23
3.31
3.42
3.55
3.70
3.73
3.91
4.10
4.56
PowerGlide
4.24
4.51
4.80
5.42
5.68
5.83
6.02
6.25
6.51
6.56
6.88
7.22
8.03
TH200-4R
6.60
7.01
7.48
8.44
8.85
9.07
9.37
9.73
10.14
10.22
10.71
11.23
12.49
TH350
6.07
6.45
6.88
7.76
8.14
8.34
8.62
8.95
9.32
9.40
9.85
10.33
11.49
TH400
5.98
6.34
6.77
7.64
8.01
8.21
8.48
8.80
9.18
9.25
9.70
10.17
11.31
TH700-R4
7.37
7.83
8.35
9.42
9.88
10.03
10.47
10.86
11.32
11.41
11.96
12.55
13.95
4L80E
5.98
6.35
6.77
7.64
8.01
8.21
8.48
8.80
9.18
9.25
9.70
10.17
11.31
Borg-Warner T56
7.16
7.60
8.11
9.15
9.59
9.83
10.16
10.54
10.99
11.08
11.61
12.18
13.54

Overall Second Gear Ratio : 1 (Tranny Ratio x Rear Gear Ratio)
Tranny/Rear Gear
2.41
2.56
2.73
3.08
3.23
3.31
3.42
3.55
3.70
3.73
3.91
4.10
4.56
PowerGlide
2.41
2.56
2.73
3.08
3.23
3.31
3.42
3.55
3.70
3.73
3.91
4.10
4.56
TH200-4R
3.78
4.02
4.29
4.84
5.07
5.20
5.37
5.57
5.81
5.86
6.14
6.44
7.16
TH350
3.66
3.89
4.15
4.68
4.91
5.03
5.20
5.40
5.62
5.67
5.94
6.23
6.93
TH400
3.57
3.79
4.04
4.56
4.78
4.90
5.06
5.25
5.48
5.52
5.79
6.07
6.75
TH700-R4
3.90
4.15
4.42
4.99
5.23
5.36
5.54
5.75
5.99
6.04
6.33
6.64
7.39
4L80E
3.57
3.79
4.04
4.56
4.78
4.90
5.06
5.25
5.48
5.52
5.79
6.07
6.75
Borg-Warner T56
4.68
4.97
5.30
5.98
6.27
6.42
6.63
6.89
7.18
7.24
7.59
7.95
8.85

General Tranny Swap Info:

General TH200-4R vs. TH700-R4 Information:

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Copyright 2009 Bruce Johnson and Craig Watson