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There is a way you can test that without taking it out on the road. All you need is a heavy duty jack. you need to release the parking brake, and put the trans in neutral so the wheels can spin freely. Simply raise one drive wheel so that it is just off of the ground. Obviously, you have to make certian you use your wheel chocks on the front and observe all safety precautions.
this requires two people.
Perform this test once with the 2 speed rear end in each position: Chalk a line at the 12 o'clock position on the outside of the drive wheel. Crawl under the bus, turn the drive shaft by hand, keeping track of the number of times the drive shaft spins to complete one revolution of the drive tire. (if, for example, it took 2.05 revolutions of the drive shaft to complete one revolution of wheel, then you multiply that by two to get the gear ratio which in this case would be 4:10) If it takes the same number of drive shaft turns to equal one revolution of the tire after switching the 2 speed, then the 2 speed is not functioning. |