Manual Drive Train & Axles
Work Example 5

WorkKey Level: 4
NATEF Automotive Tasks: III.E.1.6

We are measuring the final drive pinion gear with a go no go gauge.  The go gauge reads 0.030” and the no go gauge reads 0.037”.  Both gauges fit; however, a 0.040” will not fit.  The current spacer measures 0.060” and they increase in 0.005” increments.

1. Find the minimum and maximum clearance.
2. What size spacer do you need?

Solution:

1. minimum:
   0.040" – 0.037" = 0.003"
   maximum:
   0.040" – 0.030" = 0.010"
2. 0.060" + 0.005" = 0.065" which is within spec.