Spicer HEAVY AXLE COMPONENTS - Manual (Page 32)

SPICER DRIVE AXLE SERVICE PARTS KITS
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Note: If the diff. case needs replacement, the entire wheel diff assembly can be upgraded. Upgrade kits vary by side gear. See chart below.
S230S/SI, S230SB, S260SB (cont.) 300KQ101X 3.73/4.44 For diff-lock models only
300KQ102X 4.78/5.63 For diff-lock models only
16120, 16130 211570 All ratios
16220,16320,16244*, 16344*, 16247,
16802, 19050T/P, 30DT/RT, 30DP/RP 51559 All ratios *Diff cases for original build axles. Refer to Note below
for conversion part numbers.*
13802, 15200, 15300, 15040T/P 52112 All ratios
19055S, 21065S, 22065S 211407 3.08/3.55 Standard diff models
121770 3.70/4.33 Standard diff models
121771 4.63/7.17 Standard diff models
122117 3.08/3.55 For diff-lock models only
122118 3.70/4.33 For diff-lock models only
122119 4.63/7.17 For diff-lock models only
Upgrade Kit No. Side Gear Vehicle Mfg.
All kits contain the side gear
specified plus the part numbers
listed below.
121962 126000 (36 Involute) Ford, International, GMC 126001 side pinion, 126002 spider,
126003 side pinion thrust washer,
126004 side gear & support case
thrust washer, 126006 diff. case
with clutchplate pin, 126007 diff.
case, 126008 idler pinion pin,
126009 gear support case, 126075
cap screw, and 109238 cap screw.
121963 210386 (30 Involute) Mack Midliner
121964 210387 (16 Angular) Ford (before 2-1-86)
121965 210388 (16 Straight) International, GMC (before 2-1-86)
Differential Case Kits
Model Part Number Ratio Notes