Vibration getting worse

[bearcrawl]

Jason, you are the man. Pulled O/D off and found no Main Shaft nut at all. Atleast thats what I think I am seeing.



In fact when I pulled off the o/d the lock washer was flopping around. Where the hell did the main shaft bolt go? Guess I will have to take off the case bottom and see if it's in there.

[SafeAirOne]

I'm CERTAINLY no authority, but looks like a nutless shaft to me.

[bearcrawl]

Opened up pan and no nut no place. Magic vanishing nut. Or magic previous owner. Either way I hope this solves the problem.
Thanks again guys

[I Leak Oil]

Never ceases to amaze me what people do to these things!
Jason T.

[sven]

Wow, thats nuts ...sorry


On that first pic, the splines look a little worn. You may wanna check the matching splines on the input shaft.

[BackInA88]

Are you sure it isn't inside the pocket in the overdrive?
Isn't there and undercut behind were the splines engage?

[daveb]

I was going to suggest that, it would have to be in there as there is no way for it to fall out.

Are you sure it isn't inside the pocket in the overdrive?
Isn't there and undercut behind were the splines engage?

[bearcrawl]

I cant find it anywhere.

[jp-]

PO probably left it out. Just buy a new nut (only a few bucks) and maybe a tool to install it (if they sell one???). I made my own istallation tool. One time use; I designed it so that it would fail at the exact correct torque.

By the way, good call Jason. (Were you the PO by chance?)

[I Leak Oil]

By the way, good call Jason. (Were you the PO by chance?)

Errr...umm...no speak english!? No not the PO but I did stay at a holiday inn express last night!
Jason T.

[adkrover]

Rover's North has the best price on the tool (just bought one) and Rover's Down South will have the nut if no one else does. I agree it must have never been there since it can't possibly have come off the shaft while the OD is installed.

[bearcrawl]

Nope not it. Running out of ideas. Thinking about exhaust rattle. Rattles a bit @ a stand still. Louder at 20mph. Louder yet @ 50mph. Volume changes with speed. Seems to vibrate @ similar RPMs regardless of speed.
Amazingly shifts much nicer now with the main shaft nut on.

[bearcrawl]

Pulled O/D off and drove it. Exact same. Now I am really pissed. Have no Idea where to look next

[ArlowCT]

A few questions to help me try and figure out this problem...
Have you tried pulling the front drive shaft?
Did you replace the shocks when you did the springs?
Did the shocks get new rubber bushings and are nice and tight?
These are just a few things that have given me problems over the years.

And I just have to ask... have you had the tires balanced lately?

[bearcrawl]

Yep, new shocks, new tires, pulled both drive shafts just pulled the rear for a second time. still out right now. going to replace all engine trans. mounts Monday although they don't seem to be too bad. I am willing to try bout anything.