NOTE: This bulletin applies to vehicles equipped with a NSG-370 6-speed manual
transmission (sales code DEH).
Upon shifting the 6-speed manual transmission into Reverse, the customer may notice that
reverse gear may not remain engaged.
This condition may follow/develop shortly after an accidental mis-shift into reverse has
occurred. While the vehicle is moving forward and already in a forward gear, instead of
shifting into another forward gear the reverse gear is incorrectly selected. Though reverse
can not be obtained during the mis-shift attempt, damage to the internal shift subassembly
and reverse gear may occur which may later prevent full reverse gear engagement when
reverse is selected properly. The customer should be made aware of proper shift
This condition may also occur if the center floor console and/or shifter boot are not
1. Verify that the center floor console and shifter boot are not preventing the transmission
shifter from fully engaging reverse. Verify that the console is centered properly to the
shifter. Verify that the shifter boot is installed properly.
2. If the center console and shifter boot are properly installed, and the transmission fails
to remain in reverse as designed, perform the Repair Procedure.
Qty. Part No. Description
1 05175903AA Kit, Reverse Gear - 4x4 or 4x2 (inc. internal
shift subassembly, reverse gear, reverse
syncrho sleeve, reverse blocker ring,
retaining snap rings, oil seals, and counter
shaft seal plug )
1 04318083 MoparŪ Gasket Maker
2 04874464 Lubricant, MoparŪ Manual Transmission
SPECIAL TOOLS/EQUIPMENT REQUIRED:
9648 Mainshaft Build Fixture
9633 Build Fixture
NPN 3-Jaw Puller
W-262 Hub Installer
NPN Hydraulic Press
9638 Seal Installer
9635 Seal Installer
9636 Shaft Remover and Installer
7829-A Plug Installer
6448A Bearing Installer - Tube
Replace the manual transmission internal shift subassembly and reverse gear
components. Refer to detailed disassembly and assembly repair procedures in
TechCONNECT which are available in Group 21 - Transmission and Transfer Case /
Manual Transmission - NSG370.
Reimbursable within the provisions of the warranty.
colorado jeep club member #730
stimulating the economy one part at a time!