ALLISON 1000 (GM) 29 SPL. TO GM NP205

Advance Adapter

This adapter uses an Allison 4WD 29 spline transmission and couples it to the 1985-91 GM Round Bolt Pattern NP205. The adapter comes with a new 29 spline input and 2.875″ of adapter to couple the two. The adapters and new input also have the 40 tooth reluctor and pick-up to keep the transmission happy with the necessary computer output signal.

Note: we do not offer any linkage brackets for the transfer case linkage.

Bill Of Materials

• RELUCTOR- ATLAS INPUT / 300617
• SCREW- RELUCTOR RING / 300617A
• SENSOR- SPEEDOMETER / 300619
• SNAP-RING EXT INPUT GEAR NP / 340407
• ADAPTER- ATLAS or NP205 FORD/GM ALLISON SENSOR / 51-6912
• GEAR- NP205 INPUT 46T / 52-9600
• SHAFT- NP205 INPUT 29T LONG / 52-9607
• BEARING 6210-T/C INPUT GEAR BEARING / 716315
• SNAP RING-EXTERNAL 1 15/16 / 716467
• NUT 3/8 -16 PLATED GRD 5 / 723701
• LOCK WASHER 3/8 ZINC / 723704
• BOLT 3/8 -16 X 3.25″ SHCS ZNC (ALLISON ADAPTERS) / 723762