Transfer Case Assembly (for 1-1/8" shaft)
Fits 46-53 Jeep & Willys with D18 transfer case

Transfer Case Assembly (for 1-1/8" shaft)
Fits 46-53 Jeep & Willys with D18 transfer case

Transfer Case Assembly


Everything you need to completely redo your entire transfer case already assembled Kit includes all New gears, shafts, bearings, gaskets, seals, ect. Its complete and already assembled. Just drop it in! Its even assembled here in the USA!!! Original housings are used for proper stamping.

Helpful Guides and Illustrations:
Replacement Instructions

D18 transfer case

For 1-1/8" shaft

Note: Output shaft gear sold separate if needed.

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

Please allow 5-6 weeks for delivery.

-A fully prepaid return label will be included in the box.
-Just put your complete transfer case assembly in the same box we send you and return your old core.
-As soon as we get it back we will refund you back the $300 core fee.
-Please make sure to package it properly to prevent damage.

Item # Price

Availability: In stock

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Questions & Answers

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Questions: I have a 1951 CJ3A with a leaky transfer case and none of the shift levers will stay in gear and fall back to neutral when moving. I have to bungee cord them into gear to get them to work properly. Is it time for a rebuilt or new transfer case or is this an easier problem to fix?
Question By: Gavin on Dec 7 2020 8:54 PM
Sounds like it. Your poppet balls and springs and shift forks are for sure worn.
Answer By: Willys Jeep Parts Tech on Dec 7 2020 1:35 PM
Questions: The instructions say to put old case in box to ship back. Do I send the whole transfer case guts and all?, or do I have to disassemble it? Thanks
Question By: O.G. on Aug 20 2020 2:05 AM
The whole case please. You dont need to disassemble.
Answer By: Willys Jeep Parts Tech on Aug 20 2020 5:44 AM
Questions: Does this a M38A1 jeep. I Dont see it listed.
Question By: william farmer on Aug 18 2020 10:26 PM
937477-14 this is for the M38A1.
Answer By: Willys Jeep Parts Tech on Aug 19 2020 9:17 AM
Questions: is the gear from the transmission to the transfer case included in this kit? if not what is that part number? is the total cost $1,174? and then the $100 core rebated back to $1,074?
Question By: jeff scharping on Sep 17 2016 3:09 AM
The mainshaft gear is separate part number: 937339. The core fee is additional but fully refundable. Please see notes above on item description.
Answer By: Admin on Sep 19 2016 5:44 AM
Questions: I am looking for just a minor overhaul kit with seals, bearings, gaskets, etc. Do you carry that (like you do for the transmission)?
Question By: Steve Brown on Jul 13 2016 2:33 PM
D18ABSG D18BBSG D18CBSG These are the part numbers for the D18 transfer case minor overhaul kits
Answer By: Willys Jeep Parts Tech on Jul 13 2016 9:00 AM
Questions: Do you offer rebuilt transmissions and transfer cases, or just brand new? What's the price difference if so? My wife towed mine on a uhaul before i could disconnect the drive shaft and melted My tranny at least. Do you think it harmed the transfer case also?
Question By: Kyle on Apr 6 2015 12:00 AM
It all probably needs to be gone thru. These are all new internals in original cases.
Answer By: Willys Tech on Apr 6 2015 12:00 AM
Questions: I have a 61 willys pu. now has only front wheel power, no power to the rear. will only move when 4 wheel is engaged.
Question By: Novice on Feb 14 2014 12:00 AM
I would check your transfercase. The levers may not be enguaged properly.
Answer By: Willys Tech on Feb 17 2014 12:00 AM
Questions: Would the transfer case be set up for an M38A1 floor mounted style emergency brake handle, or the type with a dash mounted handle?
Question By: Jim on Oct 3 2013 12:00 AM
Typically on the floor.
Answer By: Willys Tech on Oct 4 2013 12:00 AM
Questions: Could this be used with a Willys MB and if not do you sell one used that I can?
Question By: Chase on Mar 19 2013 12:00 AM
We do have them for the 1941-45 MB as well with the 3/4 intermediate shaft. Please call us toll free.
Answer By: Willys Tech on Mar 19 2013 12:00 AM
Questions: what weight oil is recomended for this application and how often should one change?
Question By: fred sinnett on Feb 24 2013 12:00 AM
We typically use 90 weight. We change it out every 5000 miles.
Answer By: Willys Tech on Feb 25 2013 12:00 AM
Questions: My twin shifters for the hi-lo and front shaft engage are loose. It looks like the holes on the case that hold them are wore out. Do they make a sleave for them or do I need a new tranfer case housing
Question By: Dave on Feb 7 2013 12:00 AM
You would have to rebush them. We do have new anti-rattle shift springs part number: A970 and pivot pin part number: A972 those wouldh help.
Answer By: Willys Tech on Feb 7 2013 12:00 AM
Questions: Is this a small bore or large bore case?
Question By: Metcalf on Jan 28 2013 12:00 AM
We can do either.
Answer By: Willys Tech on Jan 28 2013 12:00 AM