Spicer Tandem Drive Axles Service Manual D__R440, 460, 480, D_R461, 462, 463, 521, 581, 601, 651, 652, 653 - Manual (Page 10)

6
General Information
Ring Gear and Pinion
Note: Ring gear and drive pinion are matched parts and must
be replaced in sets.
1 - Part number
2 - Number of ring gear teeth
3 - Manufacturing numbers
4 - Matching gear set number
5 - Number of pinion teeth
6 - Date code
7 - Indicates genuine Spicer parts
8 - Heat code
41-8
SPICER
127381
OF
NL2
17
127
8-41
12742
8
SPICER 17
G
6-39
JD77
85405
86
5
2
3
1
7
8
L7
03
8
1
4
L703
8
4
7
G
3
127
0H
6
8
6