OD Saturn/Warn Research Archives

To Top

Warn Overdrive Inverness, FL **SOLD**

• CATEGORIES: OD Saturn/Warn

UPDATE: **SOLD** Was $150.

Mark just posted this a sellajeep.com. Its got one broken piece.

“from a 1959 cj5 t-18 transfer case. One small broken piece (see photos) gears and bearings in good condition. Located in central Florida.”

overdrive-fl1 overdrive-fl2 overdrive-fl3 overdrive-fl4

To Top

Unusual Auxiliary Transmission … Can Anyone Identify It?

• CATEGORIES: Features, OD Other, OD Borg Warner/Rancho, OD Saturn/Warn

UPDATE: While still unidentified, we have learned thanks to the Dutch_Jeeper on the CJ-3A page that the auxiliary transmission is an “under-drive” rather than an overdrive. He pulled this out of his CJ-3A, then disassembled it.

You can learn more and see more pics here: https://cj3apage.com/Forum/index.php?topic=2318.msg19546#msg19546





Originally Posted February 5, 2021: An owner of a CJ-2A posted onto Facebook these photos of an unusual auxiliary transmission. I only am aware of two that work between the T-90 and Dana 18 (the Warn and the Husky). Anyone recognize this?

IMG_1879 Continue reading

To Top

Warn OD Camillus, NY $575

• CATEGORIES: OD Saturn/Warn

Looks like no shift linkage is included.


“Willys T18 Warn overdrive
29 tooth gear.
Fits 54 and up.”


To Top

Warn Auxiliary Transmission

• CATEGORIES: Advertising & Brochures, Documents, Features, OD Saturn/Warn

Originally Published November 03, 2019: 

warn-auxilary-transmission-brochure1-lores warn-auxilary-transmission-brochure2-lores


Originally posted in September of 2018:

Blaine spotted a discussion at the Ford-Trucks.com forum on Auxiliary transmissions that included the rare Warn Auxiliary Overdrive. A user named “38 Coupe” shared a bunch of smaller Auxiliary transmission documents that included a Parts and Instruction manual for the Warn AO. So, here it is, along with some photos of a Warn unit that was for sale in April of 2015.


Continue reading

To Top

NOS Warn Overdrive Santa Cruz, CA $1000

• CATEGORIES: OD Saturn/Warn

Looks like this one has been sitting in someone’s garage for a while.


“Warn Overdrive, 26 tooth 6 spline. New condition not a rebuilt unit, This was in a project Jeep I purchased that was never completed to run. Overdrive was mounted but never used, new condition but is many years old. Includes Overdrive, new gasket and seal set, new install lock and keeper set, shifter with floor plate and instructions. SOLD AS IS, buyer to be sure of correct application, $1000 cash only no checks, no trades.”


warn-overdrive0 warn-overdrive1 warn-overdrive2 warn-overdrive3

To Top

Warn Overdrive Catalog from the late 1960s (?)

• CATEGORIES: Advertising & Brochures, Books, Features, OD Saturn/Warn

UPDATE: This was originally posted in 2012, but it’s worth a repost.

Dad never had an overdrive in his jeep, but did have this catalog (No. 1842). I suspect he built a few of these for Al Carroll.

I’ve attached a few random pictures below, but the PDF link includes all the pages and is downloadable to your computer.


To Top

1969 Buick 225/SM420/Dana 18/Warn OD Bakersfield, CA **Status Unknown**

• CATEGORIES: OD Saturn/Warn, Parts

UPDATE: **SOLD** Was $1600.

Seller is accepting offers.

buick225-od-sm420-1 buick225-od-sm420-2

“Hi all, I recently sold my willys jeep and the buyer didnt want the engine, trans, transfer case and Overdrive.
I am relisting these parts for sale.
1969 Buick/Jeep CJ 225 Odd fire V6 engine, fully rebuilt with $2200 dollars in receipts. Has both 2 and 4 Brl Intake. manifolds.Isky RV type cam. Engine has been properly stored and never fired up.
GM SM420 4 speed transmission rebuild by Herm the OD guy, compound low first gear, final drive 100 to 1
Novak Adapter to rebuilt Large shaft Dana 18 transfer case
New never used Warn OD unit from Herm the OD guy.
As above this was built for a willys but will adapt to any pre smog Jeep.
Open to trades. Make an Offer. Motivated to sell”

To Top

Husky Overdrive Olympia, WA **SOLD**

• CATEGORIES: OD Saturn/Warn

UPDATE: **SOLD** Was $450.

This may need a rebuild. Herm Tilford should be able to rebuild it.

“Husky overdrive for Dana 18 transfer case. Will fit Willys jeeps, cj5, and even the international scout.”


To Top

Warn OD $500 & Warn OD to PTO Adapter **SOLD**

• CATEGORIES: OD Saturn/Warn, Parts

Seller is selling both an OD and an OD adapter.

  1. WARN OD Was $500 **SOLD**:
  2. Warn OD to PTO Adapter **SOLD** Was $70:
    warn-od-pto-adapter1 warn-od-pto-adapter2
To Top

Warn Overdrive Wilmot, NH **SOLD**

• CATEGORIES: OD Saturn/Warn

UPDATE: **SOLD** Was $650.

Looks like it includes the shifter.


“Selling a Warren overdrive
Came off a 1947 Willy’s Cj-2 Jeep
Asking $650”

To Top

Warn Overdrive Fremont, OH **SOLD**

• CATEGORIES: OD Saturn/Warn

UPDATE: **SOLD** Was $799.


“29 spline Warn Saturn Overdrive – will fit a T-90/Dana 18 transmission/transfer case. Run that vintage Jeep a little faster and run with lower RPM’s. This overdrive was recently re-built by Herm the Overdrive guy. It is fully functional. I had it in my FC 150 but could not get the linkage worked out to my satisfaction. Ended up selling the FC (for other reasons) and now want to find a good home for this overdrive. Comes complete and ready to install with everything you need (including a new “special” retainer clip) DOES NOT INCLUDE SHIFTER OR LINKAGE – but these are easily fabricated. This unit has low mileage and shows hardly any wear.”

To Top

Warn Overdrive Phoenix, AZ **SOLD**

• CATEGORIES: OD Saturn/Warn

UPDATE: **SOLD** Was $350.

Could be a good price.

“Warn overdrive. 29 tooth , 6 spline , rear shift. Will fit early jeep CJ 5. CJ3a CJ3B, CJ2A.
350 firm. Maybe trade for good winch.”


To Top

Rebuilt Warn OD Tucson, AZ $650

• CATEGORIES: OD Saturn/Warn

No pics provided.


“Have recently rebuilt Warn Overdrive for Willy’s vehicles, 29 tooth, never used since rebuilt.”


To Top

CJ-5 Parts including Warn OD Ashton, ID

• CATEGORIES: OD Saturn/Warn

The seller is parting out a CJ-5. The tranny/tc/Warn OD is a package deal at $600. It is the older 30% OD.


“Hood $75 Set of springs that lifted the jeep 2-3 inches $100 Windshield frame was never paid for so it is for sale again $50. Passenger side fender $125. Transfer case and transmission with Warn overdrive $ 600 as a unit. the overdrive is 29 tooth. Is an older version 30% overdrive. It takes a special 6 prong tool to remove the barrel gear from the transfer case, that is why i am hoping to sell it with the transfer case.”


To Top

T90/Dana18/OD Yuma, AZ $800

• CATEGORIES: OD Saturn/Warn

Appears worth a look.

“This is a T90 transmission, Dana 18 transfer case and Saturn OD from a 1946 CJ2A.
They all shift and turn freely. The only evident issue is that some one beforehand had cut the tops of the original shifters and added these rods. Doesn’t affect the function, just looks dumb.”



To Top

T-18/Dana 18/Warn OD Duvall, WA $1400

• CATEGORIES: OD Saturn/Warn

All rebuilt.

“I have rebuilt t18 transmission ( spent $1300) with Novak adapter to a cj2a dana 18 ( rebuilt) with warn overdrive ( rebuilt by Olympic 4×4) combo that I need to sell. I had this combo built years ago but never completed the project so it has zero miles. I have paperwork on tranny and overdrive but cannot find transfer case paperwork. Have all shifters and linkage for all. This has been in my shop collecting dust for many years but has been inside the whole time. It is currently attached to a ford 289 (zero mile since built) but I may keep that for my bronco”



To Top

Warn OD Tucson, AZ **SOLD**

• CATEGORIES: OD Saturn/Warn

UPDATE: **SOLD** Was $650.

Recently rebuilt.

“Have recently rebuilt Warn Overdrive for Willy’s vehicles, 29 tooth, never used since rebuilt.”


To Top

Husky Overdrive w/T-98 and TC Leadville, CO **SOLD**

• CATEGORIES: OD Saturn/Warn

UPDATE: **SOLD** Was $800.

This might be worth a look, but the shifters are missing.

“Complete trans and transfer case with Husky overdrive. Husky brand is a copy of the Warn unit and made in Longmont ,Colo. Missing all shift levers. The trans is a t-98 ,4spd.”



To Top

1980 Overdrive Article from Pickup, Van & 4WD Mag

• CATEGORIES: Features, OD Other, OD Borg Warner/Rancho, OD Saturn/Warn, Old Images

UPDATE: Here is a brochure and some directions/schematics for the rare Sierra Dana 20 Overdrive.


The Sierra Overdrive was designed to mount to a Dana 20.

In November of 1980, Pickup, Van & 4WD Magazine published this article on overdrives, which includes several I hadn’t heard about. This series of article images comes from Christian Harrison (and thanks to Marty Tilford for spotting it). The scans aren’t perfect, but are mostly readable. You can find a similar article at the Four Wheeler Network.

Particularly interesting to me is the Dana 20-mounted Sierra Overdrive. Willie Worthy of Four Wheeler was involved in the development of it, but noted that a lack of capital doomed it.




Continue reading

To Top

Warn Overdrive Oakdale, CA **SOLD**

• CATEGORIES: OD Saturn/Warn


The seller has prices on a couple things, but doesn’t list a price for this overdrive/tc/tranny combo.

“Stock parts.
Frame. – $500
Front and rear axle. – $500
Heads. I’ve got 2. – $350 each”


To Top

Wagner Overdrive? Tucson, AZ $650

• CATEGORIES: OD Saturn/Warn

I’m assuming this is a Warn. No pics provided.

“Have recently rebuilt Wagner Overdrive for Willy’s vehicles, 29 tooth, never used since rebuilt.”


To Top

Warn Overdrive Shelton, WA $600

• CATEGORIES: OD Saturn/Warn

Looks like it might need a rebuild.



To Top

Overdrive Trade & PTO Upgrade Boston, MA **SOLD**

• CATEGORIES: OD Saturn/Warn, wanted

UPDATE: **SOLD** Was  for trade.

The seller wants to trade WARN ODs and is also looking for wagon/truck PTO parts.

“I am looking to trade my 26 tooth, 6 spline Warn overdrive for a Dana/spicer 18 transfer case for a 29 tooth, 6 spline version. I am also looking for an PTO winch and appropriate driveshafts for a Willys wagon or truck.”


To Top

T-90/Transfercase/Overdrive Cody, WY **SOLD**

• CATEGORIES: OD Saturn/Warn, Transfer Cases, Transmissions

UPDATE: **SOLD** Was $1200.

Given the mileage, the tc probably needs a rebuild.



To Top

Warn OD Prescott, AZ **SOLD**

• CATEGORIES: OD Saturn/Warn

UPDATE: **SOLD** Was $550.

Pulled from a CJ-2A.