need some transmission info asap - Steel Soldiers::Military Vehicles Supersite

maritimer · 11-17-2008, 22:28

ok so anyone who has been watching the cucv forums knows i snapped the transmission casing in half of my daily driver m1009 and its been down for about 1.5 weeks. well i got given a th400 out of a gas 2 wheel drive truck.. i know its burnt out and needs a rebuild but besides a diesel specific torque converter and the old disel governer, is it just a simple bolt in jobby or is there guts inside it that need to be swapped to get it to mate with the m1009

FMJ · 11-17-2008, 22:33

Tailshaft will have to be swapped out, hopefully the internals on your old 1009 tranny are still useable.

maritimer · 11-17-2008, 22:44

well the case snapped 3inches towards the bellhousing from where the xfer case mates the the trans case at whic hpoint it was pulled to the side of the road and flat towed 250yrds to my place. i know the orig trans was soon in need of a rebuild anyway as a result of the type of working i do with it. just wanted to know if i can just have the donated trans rebuilt as is with only swapping the TC and governer

CCATLETT1984 · 11-17-2008, 22:55

For it to fit into your m1009, it must have (or you will need to swap from your old case) a 32spline 4x4 output shaft. This is the main shaft of the transmission.

maritimer · 11-18-2008, 00:40

ok so i will have to rip down the 2 cases and put the guts of the old into the donated one joy,

mangus580 · 11-18-2008, 08:49

Quote:

Originally Posted by maritimer

ok so i will have to rip down the 2 cases and put the guts of the old into the donated one joy,

Having rebuilt a TH400, its not as bad as you think. Just take your time and be very careful of the seals.

desertfox · 11-18-2008, 12:10

I have rebuilt many 350 an 400s. Purchase a book and a few special tools. They are not real expensive. 1 to compress the clutch packs. A long pick tool to help remove/replace o-rings. Some snap ring tools. And on the 400s there is a bolt in the bottom center after you remove the valve body that must be removed before you can remove the front section of the inner guts. Not a real technical instuction. I am sure I have forgotten something, but there are plenty of brains here to pick.

n1bnc · 11-18-2008, 13:40

I would like to see a picture of this damage as it seems to be rather unusual.

OLDCHEV4X4 · 11-18-2008, 13:51

[QUOTE][n1bnc I would like to see a picture of this damage as it seems to be rather unusual. /QUOTE]

I broke a th350 in half. About 3" in from the adapter. It still drove till all the fluid ran out.

maritimer · 11-18-2008, 15:08

Quote:

Originally Posted by n1bnc

I would like to see a picture of this damage as it seems to be rather unusual.

well when i get around to pulling the broken trans out of the truck will post pics.