- 629
- 24
- 18
- Location
- Port orchard, WA
In another post there was much discussion and theories on what was really going on. In that post I volunteered to take some measurements when I had my axles apart. Ok here are the results for the stock center section gearing.
test conditions, one tire on the ground to ensure the one wheel didn't cause error, so with that the rotations of the wheel end will be double what actual.
first thing I did was to find the center of the hub and affix a 360 degree protractor to it, and set up a pointer to indicate movement.
Then an I marked the pinion. The I counter rotated the pinion opposite the direction I wanted to go and then turned it back to my mark to ensure I had all the back lash out and reset my zero. Then rotated the pinion 1 rotation or 360 degrees and the hub indicated 90 degrees movement.
To to verify accuracy I did another rotation of the pinion and it indicated 180. Not pictured.
next I tore down the hub to get to the axle shaft and set up a similar arrangement
Again made sure all backlash was out, set zero and did a rotation of the pinion.
This time the axle shaft rotated 184 degrees.
I'll let all the math wizards do the math and figure out actual gear ratios for the standard gears. It started raining again, otherwise I would have the data for the high speed gear sets as well.
test conditions, one tire on the ground to ensure the one wheel didn't cause error, so with that the rotations of the wheel end will be double what actual.
first thing I did was to find the center of the hub and affix a 360 degree protractor to it, and set up a pointer to indicate movement.
Then an I marked the pinion. The I counter rotated the pinion opposite the direction I wanted to go and then turned it back to my mark to ensure I had all the back lash out and reset my zero. Then rotated the pinion 1 rotation or 360 degrees and the hub indicated 90 degrees movement.
To to verify accuracy I did another rotation of the pinion and it indicated 180. Not pictured.
next I tore down the hub to get to the axle shaft and set up a similar arrangement
Again made sure all backlash was out, set zero and did a rotation of the pinion.
This time the axle shaft rotated 184 degrees.
I'll let all the math wizards do the math and figure out actual gear ratios for the standard gears. It started raining again, otherwise I would have the data for the high speed gear sets as well.