Transmissions Research Archives


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Dan’s searching for a SM420 Tower

• CATEGORIES: Transmissions

Dan just picked up this SM420 pretty cheaply, but it has a remote shifter rather than a tower shifter.  Anyone have a SM420 Tower they don’t need?  If so, leave a comment below and I’ll make sure Dan get’s your message.

Dan notes this tranny came from a M-561 6×6 (note inscription on serial number).  Here’s a link to Olive Drab which describes them.



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Warn OD/t10/tc Inland Empire, Ca $1200

• CATEGORIES: OD Saturn/Warn, Transmissions

t10_tc_od_inlandempireHere’s a combo for sale.  I don’t think it’s a great price, but worth watching in case the price drops.

“i have a t-10 transmission mated toa dana 18 transfer case i pulled out of my cj-3a it also has a warn overdrive unit everything works fine i’m just doing a different set up i want $1200 o.b.o for everything , SOLD AS A UNIT I WILL NOT SPLIT THEM UP ,
Contact John @ 909-518-5106”

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c4 to Dana 20 Adapter Terrebonne, Or $250

• CATEGORIES: Transfer Cases, Transmissions

c4_dana20_adapterA brand new adapter will run around $450 (here’s one for $479).  I suspect these are hard to find used.

“call for a pic or e-mail. there are no cracks and no abuse. i also have a ford bronco frame set up for a willys wagon 4×4. there is a 351w a c6 tranny and a np 208 transfer case. 1200.00 for the whole frame.”

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T-90, Dana 18 and Rancho OD — Topaz, Nv $225

• CATEGORIES: OD Borg Warner/Rancho, Transmissions

t90_overdrive_topazI believe this is a rancho BW overdrive.  Here’s a pic of one installed on an M-38a1.  This was posted a month ago.

As a side note, I ran across a thread that suggested Rancho made an adapter plate to mount a rancho BW overdrive onto a Dana 20 tranny (‘herk’ comment 12/07/2007).  I thought that was interesting.  Sierra also made an overdrive for the Dana 20Here’s an article on various overdrives from JP Magazine.

“used for a Jeep. Been sitting around need to get rid of it. Call Randy 775-266-4776 leave a message I’ll return calls in evening. Thanks”

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Rare Husky Overdrive Nampa, ID **SOLD**

• CATEGORIES: OD Other, Transmissions

t90_18tx_huskyod_nampaUPDATE:  **SOLD** Was $750

The Husky Overdrives are very rare. Here are some overdrive links.

  1. Herm’s site has best history on overdrives on the web
  2. The CJ-3B site has some information on overdrives
  3. Here’s a thread on the Early CJ-5 site about Husky vs. Warn

“For sale: T90 Transmission, Dana 18 Transfer Case, & Husky overdrive out of a 1962 Willy’s Jeep CJ5. Comes with a bell housing and adaptor for a small block Chevy if you want it. All worked when pulled a couple of years ago.  Dana 18 overdrives are hard to come by. Husky copied Warns overdrive until Warn sued them and they had to stop. They are supposed to be just as good as the Warn unit.

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Turbo 400 attached to Dana 20 — Tacoma, Wa $100

• CATEGORIES: Transmissions

This is a deal.  The Dana 20/Turbo 400 adapter is $537.  Heck, the cooler alone would cost $40 new.  If still available, I'll pick this up on Wednesday, use the cooler myself, and resell the rest.

"What we have here a Turbo 400 transmission attached to a Dana 20 transfer case. The Turbo 400 is the BOP style pattern. This set up was removed from a Jeep frame.Worked great, only issue with it was the gasket between the trans and transfer leaked. What you see in the pic is what you get.Will not seperate this. If you want just one piece of this set up, you will have to purchase the whole thing. Tried to show all parts in the pics. Located in Tacoma."