S15/T15 4WD P/U V6-173 2.8L (1985)
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Figure 2
Companion Flange Compensation Weights
Figure 3
This "compensation" weight was originally installed to compensate for the effect of offsetting 1/2 the mass of the propshaft because of companion flange
runout. Missing or improperly located weights may worsen the driveline disturbance. Refer to Figure 2 for companion flange and compensation weight
specifications.