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Intermediate Shaft Gear
Fits 46-53 Jeep & Willys with Dana 18 transfer case

Part # 642189

New Intermediate Shaft Gear (1 required per vehicle)

Stamped 18-5-7 with 34 tooth x 21 tooth count

Dana 18 Transfercase

46-49 CJ-2A
49-53 CJ-3A
50-52 M38
46-53 Truck
46-53 Station Wagon

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Can an intermediate shaft gear with a 34 x 21 tooth count be swapped with 39 x 18. I have a 53 CJ3A and purchased a used transfer case from a 47 CJ2A that according to the charts should be compatible. When I received the used case, ordered unseen, the tooth count is different on the gears. I'm wondering if the transfer case in my 53 has been previously changed out. Any suggestions?

Willys Jeep Parts Tech:
You need to stick with the proper gears for the shaft size on your intermediate. They do not interchange.

are the parts made in the USA

Willys Tech:
Yes, typically we have these in NOS or new US made.

My old gear is 34x21 tooth count, With 1-1/8 shaft. Will your new gear have the correct bore for the 1-1/8 shaft?

Willys Tech:
Yes, this is the 1-1/8 shaft size gear.

is the bore in the gear all the same size? AS There are different size intermediate shafts.

Willys Tech:
Yes because they have to accommodate the different shaft sizes - 3/4, 1-1/8 or /-1/4.
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