Topic: Gear ratio 206 peerless

[ctown75]

Anybody know the overall ratio in high gear on the peerless 206?  Needin somewhere to start to get my buddy's SS at 8:1

[The Tank]

If it's the MST 206 Peerless Scotty these can range depending on how many speeds it has. I cant remember right off what mine is. I have a MST 205 5 speed in a super stock. The MST 206 is just a lil more heavy duty than the MST 205.

[ctown75]

Yeah- i figure we can prolly count some teeth when we tear er apart to weld it up.....it's a 6 speed tho.

[Squidd]

Or you could spin the input and count the output in desired gear to get ratio without getting dirty.

[The Tank]

Or you could spin the input and count the output in desired gear to get ratio without getting dirty.

That's how I did mine.

[ctown75]

Yeah...prolly be a bit easier that way LOL

[ctown75]

 The overall ratio in high gear on a Peerless MST transaxle depends on the Model Number of the transaxle.  For that reason, the following list gives all possible gear ratios available on the MST-Series transaxles.  The first column will be the Number of Teeth on the cluster gear pairs; the second column will be the actual Ratios themselves.  The first number in the Number of Teeth column will be the number of teeth on the "drive" gear on the countershaft, the shaft with the large bevel gear on it -- and the second number in that column will be the number of teeth of the "driven" gear on the shift-key/brake shaft.
  The Input Ratio for all MSTs is 2.31:1; the Output Ratio is 3.45:1; and the Differential Ratio is 2.87:1.  These "fixed" ratios for all shift speeds compute to 22.87:1.  So...to determine the "overall" ratio in any gear, simply multiply your Cluster Ratio x 22.87 and this will give you the "overall" ratio for whatever speed you are in.
  Yes, this means you will have to count the number of teeth on the cluster gears to determine the actual ratios.  
  NOTE: The 10-tooth drive gear for the lowest ratio is made onto the countershaft; this gear is not available separately.  All other gears are individual gears.

Number of Teeth      Ratio
10:40                         4.00:1
11:29                         2.64:1
13:27                         2.07:1
16:24                         1.50:1
17:23                         1.30:1
18:22                         1.225:1
20:20                         1:1
21:19                         0.90:1
24:16                         0.67:1
25:15                         0.60:1
Reverse -
13:27                         2.08:1

Thanks!  good info!