Spicer RST40 Product Design Changes - Manual (Page 2)

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PINION BEARING CAGE CHANGE:
• • • • New Common Design Cage/Cup: Dana P/N: 129768 – Casting#127481C (all ratios)
• • • • New Common Design Cage Capscrew: Dana P/N: 210115 – 40mm – M14X2-6G Thread
• • • • New Common Cage Shims: Dana P/N: 127595, 127596, 127597, 127598, 127599
Original Design Cage/Cup: Dana P/N: 128373 – Casting#127038R (3.55 & 3.70 ratios) Note 1
Original Design Cage/Cup: Dana P/N: 128372 – Casting#107495R (all other ratios)
Original Design Cage Capscrew: Dana P/N: 113325 - 1.50” – 9/16”-12 Thread
Original Design Cage Shims: Dana P/N: 107567, 107568, 107569, 107570, 107571
RST40 Product Design Changes – ABIB-0510R3
INNER PINION BEARING CHANGE:
Shown below are specific changes that impact the INNER PINION BEARING and PINION BEARING CAGE. The new
production pinions have been redesigned and requires the use of a new inner pinion bearing. As noted in the chart on
page 3 of this bulletin, the inner pinion bearing is now included with the Spicer service gear sets for these models.
PINION BEARING CAGE CHANGE:
The new RST40 carrier and cap design is new and unique as explained on page 4 of this bulletin. The mating pinion-
bearing cage, capscrews and shims were all upgraded to that which is common to the RS404. The carrier’s made after
April 1, 2005 (casting#130945) have metric threaded pinion bearing cage holes, and require the use of the 210115
capscrew. Additionally one common cage/cup is used for all ratios. Refer to the part numbers in the chart below.
This bulletin contains product information.
Dana Corporation is not committed or liable for canvassing existing product.
PINION DESIGN CHANGE:
Newer production RST40, RST41 models are built with a new design drive pinion that now
has a step design and requires the use of the 129562 inner pinion bearing. Do not use the
old 45460 Inner Pinion Bearing with this gear set – it will not reassemble correctly.
NEW INNER PINION BEARING:
Spicer #129562 (industry# NP523912)
OLD INNER PINION
BEARING:
Spicer #045460
(industry# 72200C)
No Longer Used after
April 1
ST
2005.
NO CHANGES TO
DRIVELINE YOKE!
Note 1: When changing any BEFORE April 2005 RST40 units having a 3.55/3.70 ratio, or replacing any original
3.55/3.70 gearing with the NEW 3.55/3.70 gear sets, the correct Cage/Cup Assy must be used. The NEW
Pinions were changed in overall length affecting the stack up in these ratios, to correct this; you must use the
128372 cage/cup assy. No other ratios are affected.