X-fer Case

[blwngsket]

Maybe looking for a trans case. Have a wicked vibration coming from under my seat on the 74. Vibe starts at about 45-50 MPH. Stops/lessens during coasting. Disapears when placed in nuetral at any speed.
From a standing start there is an audible, rotational squeeke/squeele that disapears as the speed rises above about 10+/-mph. Know it's a matter of time before something gives.

It's a J shift behind a C4. Thoughts? Good time to go wityh a T shift? Does it matter? Rebuild?

[earlybronco72]

Re: X-fer Case

Check to see if either of the yokes have come loose. I would also check all the ujoints

[blwngsket]

Re: X-fer Case

Was hoping it was a D shaft. That's simple and quick. I have 3 in the garage.
D shaft is nice and tight. Maybe go AOD and T shift over C4 and J shift.

Ideas?

It's just I have a 1 ton conversion on mine and no time for either.

Crap

[plug ugly]

Re: X-fer Case

i was thinking dshaft also

[ThrillHouse]

Re: X-fer Case

check your centering yoke on the driveshaft. my front ds was doing the same thing

[pipelayer]

Re: X-fer Case

Are trans and tcase mounts all good?

[blwngsket]

Re: X-fer Case

Climbed under it last night after work. Everything looked good. Can't work on it till next week. Then I'm going to tear into it. Hope it's something like a mount bushing or D shaft. Dont want to deal with a Xfercase rebuild.

[Delta 4 Wheel]

Re: X-fer Case

Tony, I'm not sure you would feel a vibration from a failed T-Case. I would thing grinding noise, etc. But who knows, right?

It's a remote possibility, but check your new links, brackets, etc. Sure sounds like u-joints and/or axle wrap to me.

[blwngsket]

Re: X-fer Case

I dont think it's the T case either. Could be the output bearing, or D shaft. That's the starting point anyways.
Either way. the squeel is rotational. Picking up rotational sounding speed/pitch as the truck picks up speed till about 15 mph or so with vibration kicking in at about 45/50 mph..

I think I'll start by pulling the rear shaft and driving on the front end to try and recreate the problem. Go from there.

[cag33]

Re: X-fer Case

I had a vibration that I lived with for a little while. Checked yolk's and d shaft. Went on the Rubicon, Broke off the output shaft. I replaced with a heavy duty output shaft. No more vibes. Imagine that. Magic.

[blwngsket]

Re: X-fer Case

I usually use problems to justify upgrades, like most of us. Just not sure if I want to sink money into a J shift T case.

Thoughts?

[Bronco Brian]

Re: X-fer Case

I usually use problems to justify upgrades, like most of us. Just not sure if I want to sink money into a J shift T case.

Thoughts?

Are you going to wheel it ?

[blwngsket]

Re: X-fer Case

basic trails. Nothing major. That's what my pig is for. Still want it to be capable. Just not crazy.

[earlybronco72]

Re: X-fer Case

basic trails. Nothing major. That's what my pig is for. Still want it to be capable. Just not crazy.

Just pattern it after Lars bronco and you will be golden.

[blwngsket]

Re: X-fer Case

So,

5.0
Atlas
Ect
Ect
Ect

Missing anything?
Love to do that. May need a second job instead of trying to figure out retirement.........