Saturday Night Racer - three speed transmission

old dirt racer LMR Senior Offline Dirt Late Models Rule! Posts: 265	three speed transmission 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
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ka_jd7and1

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Posts: 1052
Bakersfield, CA

Re: three speed transmission
Reply #1 - 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

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Leeboy LMR Rookie Offline I love YaBB 1G - SP1! Posts: 40	Re: three speed transmission Reply #2 - 03/25/11 at 9:40pm Did you copy and paste that or type it all?
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woodracing35 LMR God Offline 2010 AMERICAN STOCK CHAMPION Posts: 534	Re: three speed transmission Reply #3 - 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
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over4t

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Posts: 1113

Re: three speed transmission
Reply #4 - 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.

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sj_valley_dave LMR God Offline Love the smell of nitro in the air Posts: 1700	Re: three speed transmission Reply #5 - 03/28/11 at 9:38am You are looking in the right place...The lines run perpendicular to the input shaft splines...
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