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Saturday Night Racer >> RACE TECH >> three speed transmission
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Message started by old dirt racer on 03/25/11 at 8:05pm

Title: three speed transmission
Post by old dirt racer on 03/25/11 at 8:05pm

any one have chart on noline ,1 line ,2 line, 3line, second gear ratios lost my paper with all ratios help please

Title: Re: three speed transmission
Post by ka_jd7and1 on 03/25/11 at 8:18pm

All of them, for reference:

TRANSMISSION 1ST 2ND 3RD 4TH 5TH
GM Powerglide 1.82 1.00 n/a n/a n/a
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 Turbo Hydra-Matic 400 2.48 1.48 1.00 n/a n/a
GM Turbo Hydra-Matic 200-R4 2.74 1.57 1.00 0.67 n/a
GM Turbo Hydra-Matic 700-R4 3.06 1.62 1.00 0.70 n/a
Saginaw 3-speed 1st 2nd 3rd
No Lines (grooves) 2.85 1.68 1.00
1 Line 2.54 1.50 1.00
2 Lines 3.11 1.84 1.00
3 Lines 3.50 1.89 1.00
Saginaw 4-speed 1st 2nd 3rd 4th
No lines 2.84 2.01 1.35 1.00
1 Line 2.54 1.80 1.44 1.00
2 Lines 3.11 2.20 1.47 1.00
3 Lines 3.50 2.47 1.65 1.00

Title: Re: three speed transmission
Post by Leeboy on 03/25/11 at 9:40pm

Did you copy and paste that or type it all? :-?

Title: Re: three speed transmission
Post by woodracing35 on 03/27/11 at 11:21pm

i bought a 4 speed saginaw and it has no lines and the guy i bought it from said that the first gear is 3.11...but by the chart on here its showing my tranny is a 2line 4 speed saginaw...the lines go across the splines right...or am i looking in the wrong place for the lines

Title: Re: three speed transmission
Post by over4t on 03/28/11 at 9:13am

Easy to check. Do it the same way you check a rear gear, rotate wheel one turn and count driveshaft rotations, and that's it. Do the same way with tranny, put it in whatever gear you want to check, rotate shafts, that's your gear. Not sure on automatics but would think it works. On rear ends you will get a true final gearing this way as tire diameter plays into it.

Title: Re: three speed transmission
Post by sj_valley_dave on 03/28/11 at 9:38am

You are looking in the right place...The lines run perpendicular to the input shaft splines...