T84 Transmission

[wildman]

Hey guys. I recently bought a 1944 MB, but the transmission had been replaced with a t90. Now I am in need of a t84 to swap out. Does anyone know how hard it is to rebuild a t84? I'm wondering if I should buy an old one or try to get one that doesn't need restoring. I'm having trouble finding any to be honest. I've rebuilt a t90 before. Just let me know if you have any advice. Thanks.

[carioca]

.. try to check out with John :


.. https://midwestmilitary.com/

..

[wesk]

Start with John Barton's T-84 rebuild guide:

Pt 1 - Dis-assembly
http://jeepdraw.com/John_Barton3-GEARBOX2.html

Pt 2 Inspection
http://jeepdraw.com/John_Barton3-GEARBOX3.html

Pt 3 Assembly
http://jeepdraw.com/John_Barton3-GEARBOX.html

The T84 portion of manual TM 10-1513:
http://jeepdraw.com/images/jeepdraw/JB- ... ISSION.pdf

Bob Notman's Troubleshooting & Rebuild guide:
Intro:
http://jeepdraw.com/images/jeepdraw/JB- ... ISSION.pdf

Sale site:
http://www.42fordgpw.com/tranny1.html

[wildman]

Thanks! If I can get my hands on one I'll rebuild it!

[wesk]

Keep in mind there were several vehicles that used the T-84 series tranny and some of those may be easily adapted.
T-84A-1, 1A and T84B-1A
Continental Late ‘32-33 Flyer
Graham 36 80 Crusader

T84-1
Continental ‘32 Beacon, Early Flyer

T-84C-1
Mack ‘37-40 2M4A
Reo Truck ‘36-39 4-75, 3/4 ton

T84D-16
Willys ‘38-39 Pass.
Willys ‘39 Overland

T-84E-16
Bantam ‘38-40

T-84F-1
Stude ‘39-40 Champion (over drive)

T-84G-16
Nash ‘41-42 40

AS1 T-84J
Am Bantam (Jeep) 40 BRC 1/4T 4×4

AS1 T-84J
Willys 41-45 Army 1/4T

AS2 T-84J
Ford Jeep ‘42-45 GPW 1/4 T 4×4

T84H-1
Bantam 41-42


Also you may need to get a different tranny crossmember if a later CJ crossmember has been used with the T90.

Herm the Overdrive Guy sells overhaul kits:
http://hermtheoverdriveguy.com/t-84-rebuild-kit-120

[wildman]

Thanks! Actually my uncle gave me an original MB crossmember to use. So I'm all good there! I'll keep checking Craigslist for a while and see what I can find.