C-E-31
Date: May 20, 1985
PARTS-SERVICE
Model: S30-120E, S40-
50F, E60-120B, E30-
60BS/BC
GRAM
SUBJECT: Differential Ring Gear and Pinion
With the addition of the S120E and E120B to the product line, the hard-ware used to bolt the ring gear
to the differential assembly has been increased from 3/8 to 7/16 diameter. The S30-100E, S40-50F,
and E30-60BS/BC will also be changed for commonality.
Parts involved:
New Part No. Description Original Part No.
306225 Gear and pinion 176220
306239 Gear and pinion 223925
306228 Gear and pinion 256631
306241 Gear and pinion 256632
Interchangeability:
When replacing original ring and pinion with new ring gear set, the differential must be altered to
accept the larger hardware. Kit P/N 306242 must be used. The kit contains necessary new hardware
and alteration instructions.
Parts Stock:
Use up on units prior to effective serial numbers.
Effective Serial Number:
C4D-7029E - S100-120E
C4T-2011E - S100-120E
Effective Transmission Serial Numbers:
E30-60BS - T20M-19429
E30-60BC - T21M-2514
E60-120B - T22M-4067
We reserve the right to make changes in design or add improvements without incur-
ring the obligation to make such changes in equipment previously manufactured.
H6030