Spicer Tandem Drive Axles Pro-40 Single Reduction and Single Reduction with Differential Lock - Manual (Page 76)

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Measure and Adjust Carrier Assembly
Adjust Backlash and Preload
1. Turn the flange half-bearing adjuster in until the ring
gear contacts the pinion (zero backlash) then back
the adjuster out two (2) notches from the adjuster
lugs.
1 - Flange half
2 - Plain half
2. Tighten the plain half-adjuster until the bearing cup
just starts to turn, this is a zero bearing preload.
3. Tighten the plain half-adjuster two lug notches. Start
with the notch at the top, count two notches coun-
terclockwise on the adjuster, turn the adjuster so that
the notch is facing straight up. You now have a two-
notch preload.
1 - Lugs
2 - One notch
4. Use a rubber mallet to make certain that both bear-
ing adjusters are fully seated.
5. Measure backlash. Make sure it is within specifica-
tion of 0.008"– 0.018" (0.15-0.46 mm).
TIP: To give yourself room to adjust contact pattern, set it
between 0.012"– 0.014" (0.30-0.36 mm).
1
2
1
2
Wheel Differential
Wheel Differential