Aftermarket TH400 gears are color-coded consult your manufacturer's gear ratio chart to determine Tail Housing and Speedometer Gears Removal. with improved shift characteristics, added clutches and superior assembly. Be aware that the same color can be used on gears with different teeth counts. Home > Products > GM Transmissions > 2004R > 2004R Speedometer Gears Muncie speedometer gears are available here in a variety of six different colors/configurations. Fits the following transmissions: TH350, TH375, TH400, & TH475.
SPLINE CALCULATION TOOL MANUAL
Manual trans history 1955-1965 good info.
SPLINE CALCULATION TOOL SERIAL NUMBER
The rear axle ratio may be determined by finding the two- or three-letter serial number prefix in the following table. The chart below show the mating driven gears. Right now it's reading way too high, it came out of a 1980 Camaro and looks like either grey or brown gear by the look on the outside tip. 3) Here's where it gets a little complicated for someone who is new to selecting speedometer drive and driven gears. This part suits the following : HG Holden. This is a Adobe Acrobat file courtesy of Hurst Shifters. The TH350's gear ratios are as follows: 2. The GM female 32 spline shafts were offered in two stick out lengths: 1979 to 1984/85 had a short stick out, while the 1985-91 had a long stick out.
It is a good idea to replace your speedo drive clip each time the gear is removed. 74 first gear in the 200-4R is much closer to the TH350(2. Note: Drive gear refers to the gear that is on the transmission output shaft.
Drag Max RPM slider to adjust the range of the RPM and km/h Gauges. Since you know the ratio difference between your old rear gear and your new rear gear, the calculation is fairly easy. A TH350 does not have a eccentric, re-position-able speedometer drive, that can accommodate a huge range of driven gear diameters like other transmissions do.It's totally backwards of what I Does anyone happen to know or can you find out what the tooth count is for the speedometer driven gear in a TH350. The black 6 tooth internal drive gear was originally used in the 4-speed transmission, but it works great to exactly correct for 4. Drive gear: Fewer teeth will slow down the reading and more teeth will speed up the reading. Carefully inspect the speedometer drive gear for wear and cracks. I have a scanned copy of the page in my tool box. 61 over 8 weeks and get it now! Unable to load form config from server. These Speedometer driven gear are for 700R4, TH400, TH350 and other GM type Automatic and Standard transmissions that have a 2" speedometer gear housing hole in the tail.
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