MUNCIE X JEEP DANA 18/20-6 SPL

Advance Adapter

The GM Muncie 4 speed adapter to the Jeep Dana 18/20 is 4.500″ long. The adapter material is 356 T-6 heat treated aluminum alloy. The adapter has a provision for a rear transmission mount. The adapter kit will include a new main shaft for the Muncie, new spud shaft for the transfer case, seals, gaskets, fastening hardware, & adapter instructions.

Transfer Case

The adapter assembly fits the1946-79 Jeep Dana 18 & 20. This kit is only offered in a 6 spline.

Transmission

The GM Muncie M21 / M22 can be identified by an aluminum case that is 10″ long and a side cover with 7 bolts. The new main shaft included in the adapter kit will fit all models 1963 to 1974. 1963 models will require addition parts.

Required Options

• PN715600 Hurst Competition Plus shifter
• PN715501 Shifter Bracket
• PN715625 Muncie Rod Kit (Male Studs) or
• PN715626 Muncie Rod Kit (Female Studs)

Adapter & transmission assembly

Bill Of Materials

• ADAPTER- MUNCIE TO D300 / 51-6000
• ADAPTER- D18/20 TO NEW PROCESS / 51-7700
• SHAFT- MUNCIE 4SP TO GM 32 / 52-3400
• SHAFT- GM32F TO JP6M D20 / 52-3420
• GASKET SET-MUNCIE 4 SPEED M20/21/22 / 716500
• GASKET-N.P.208 TRANSFER CASE / 716517
• T.C. GASKET/JEEP or TOY L/C / 716568
• SEAL- JEEP TO TH350/400 KITS / 716711
• SEAL-MUNCIE / 716701
• NUT 3/8 -16 PLATED GRD 5 / 723701
• LOCK WASHER 3/8 ZINC / 723704
• STUD BOLT 3/8 -16 X 2-1/2 / 723708
• STUD BOLT 3/8 -16 X 3-1/2 GRD B7 / 723712
• H.H.C.S. 3/8 -16 X 1-1/4 (GR5) zinc / 723722
• H.H.C.S. 3/8 -16 X 2 PLATE GR 5 / 723725
• BOLT 3/8 -16 X 1.00″ SHCS ZINC / 723731
• LOCK WASHER 7/16 STD PLTD / 724303
• HEX NUT PLATED 7/16 -14 / 724304
• H.H.C.S. 7/16 -14 X 2 zinc gr. 5 / 724309
• H.H.C.S. 7/16 -14 X 3-1/4 GR 5 / 724357
• STUD BOLT. 7/16 -14 X 2-3/4 (MUNCIE KITS) / 724360
• NUT-NYLON LOCK 7/8 -16 / 728701