Another Broken transission

87yjtoy · May 6, 2008

I broke the trans in my buggy in Hot Springs last weekend. Got it all out today. the only problem that I can find that might cause this to happen is that the rear drive shaft splines were frozen solid. Took me several minutes with a 4lb brass hammer to get it seperated. All the poly bushings in the mounts were ion good shape with no slack. all looked to be lined up properly. Here are a few pics of the damage.

Afew of the mounts

what do yall think?

race_jeep · May 6, 2008

I think you fellas are rough on equipment

InDaShop · May 6, 2008

That sucks Pat. I just tore mine down and one of my motor mount polys is melted a bit from exhaust heat. You have to keep those things healthy. Last thing I want to do is crack an aluminum block. What do you think caused the rear shaft splines to lock up? No lube? Had you noticed anything prior? Prolly not huh? Damn that sucks

87yjtoy · May 6, 2008

No lube is the culprit or the grease worms. Zerk was broken off and really couldnt tell where it went. So that is added to the list.

P · May 6, 2008

durn flat bill bug mashers...

That sucks man, it does look like the shaft pushed it "up" and broke it off... going with what your saying in that the rear shaft was locked up.

( I had bad problems with the rear shafts lockin up on the Turd... weird , I never got one to come back apart either

)

blacksheep10 · May 7, 2008

pull a woodlee and solid mount that bish
congrats, I had never broken one that far forward. Mine always break back about 2"

87yjtoy · May 7, 2008

Got all the internals switched into the new K case, All back in the buggy, just have to get all the little stuff back hooked up.

rock mafia · May 7, 2008

Looks to me like the bushings at the back of the trans can flex more than the ones at the motor, since they are so much closer together.

under_psi · May 8, 2008

87yjtoy said:
Got all the internals switched into the new K case, All back in the buggy, just have to get all the little stuff back hooked up.

damn...you don't fawk around over there..

maybe you should come over with a large bullwhip, take over my last little bit of **** and make me finish it....

i seem to stare and piddle too much...i think it's the A.D.D. in me....just ass joel.....

P · May 8, 2008

under_psi said:
damn...you don't fawk around over there..

maybe you should come over with a large bullwhip, take over my last little bit of **** and make me finish it....

i seem to stare and piddle too much...i think it's the A.D.D. in me....just ass joel.....

Im still wondering how you got so close to wrappin it up and then I finished and broke mine before you hit the trials... Get busy Mad Lou !!! :flipoff1:

blacksheep10 · May 8, 2008

rock mafia said:
Looks to me like the bushings at the back of the trans can flex more than the ones at the motor, since they are so much closer together.

Kind of like paul's. engine mounts wide, under tranny mount narrow. I feel it was the reason I broke so many 400 cases when I first put mine together.

P · May 8, 2008

I have an additional mount on the back of the Tcase as well.. its just a single suicidedoors.com bushing mounted in tabs off the back side of the case directly behind the front output.

I know my Tcase hasnt even wiggled or has at least moved in unison with the tranny because it had a cracked bolt mount hole on the back of the tranny and it hasnt changed in anyway even with the bellhousing poppin off. I really think the engine moved around so Im going to tie the motormounts together with a tube up under the pan from one side to the other.

kid rok · May 8, 2008

keep up the good work guys, I'm taking notes and should not have any of these problems. Thanks for the field work.

P · May 8, 2008

kid rok said:
keep up the good work guys, I'm taking notes and should not have any of these problems. Thanks for the field work.

laughing1 Glad we can help your cause brotha man !

Mad lou said you called and ordered a new tranny today....

87yjtoy · May 10, 2008

Got it all funning again yeasterday. It was harder to put it back together because I was looking for any cause of the problem.
Found a few things that would contribute to the problem and fixed them so maybe it will be a long time before I have to do this again.
The trans mount was too tall. had to clearanc a chassis tube and change the mount. Will have to have limit straps on the frony pass side
the drive shaft makes contact with the lower link in last 4" of drop. But I drove it around last nite & the trans works like it should.