Spicer Single Drive Axles Service Manual: 34DS, 34RS, 38DS, 38RS, DS340, RS340, DS380, RS380, DS400, RS400, DS3 - Manual (Page 68)

Inter-Axle Differential Lockout Overhaul.
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"Standard" or "Non-Current" Model Lockout Overhaul
Retrofit “Non-Current” to “Current” Model Lockout
The “current” model (only as an assembly) is interchangeable with the “non-current” lockout. The original shift fork and push rod
can be used for either model lockout and need not be replaced. Retrofit Kits are available to convert the “non-current” model to
the “current” lockout. Parts (except the shift fork), included in these kits are shown in the illustration on the preceding page. For
additional information, refer to Dana Parts Books (see back cover). Retrofit as follows:
Disassemble and remove “non-current” lockout. Refer to instructions below.
Assemble and install “current” lockout following instructions on preceding page.
Note: Do not use mounting screws from “non-current” model. They are too long to use with the new “current” model.
Special Instructions
Service Parts Availability: The “non-current” lockout assembly, body, piston and body cover are no longer available. If any of these
items are not serviceable, replace lockout with the new “current” model per instructions above. For other parts, a Service Parts
Kit (see illustration) is available to service the “non-current” lockout.
Note: Axles with Lube Pumps: These axle models are equipped with a piston stop located at base of piston. It is important that
this stop be reinstalled in reassembly.
Procedure - Disassemble and Remove Lockout
1. Remove cap screws and lock washers fastening cover to the body. Remove cover and “O’’ ring.
2. Remove nut, flat washer and “O’’ ring from push rod.
3. Remove body cap screws and lock washers, then remove body and piston as an assembly. Remove “O’’ ring and felt oilers
from the piston.
Note: The shift fork and push rod cannot be removed with power divider cover installed (see Power Divider instructions).
“Standard” “Non-Current” Model Lockout
*Asterisk Identifies parts included in Service Kit 211201