T-Case Slack

[V8-X]

I was at a local shop to have my Drivetrain checked and the mechanic stated that there was slack in the T-Case.

Anyone heard of this before?

If so, how does this happen and what is needed to fix the slack in the T-Case?

 

[justsearching]

It's likely he meant the chain. It's basically like a bicycle chain between the mainshaft and front output. I'd be surprised if a 99 chain or other parts wore out this soon unless something like low fluid or contamination.

How many miles? Do you offroad often? Have you inspected/changed the fluid?

Some slack is normal (I don't know BW specs) but if they wear badly it'll contact the aluminum housing and start chewing a hole. Then again, replacing the entire case with a used one is roughly the same cost as having a shop open yours to swap chains. And by then you may as well replace other wear parts.

Dave

 

[V8-X]

As of this morning the X is at 70,700 miles, the T-Case fluid was changed about 6 months ago. Didn't notice any contamination when the fluid was changed.

When I do re-accelerate from a coast sometimes, I feel a slight hit/knock/bang from the TC area. But this is few and far between.

Thanks again for the advice.

 

[justsearching]

With the miles and service it should not have "worn out", but something might have failed early. If the noises started getting bad at some point then I'd guess something failed. If they've gradually worsened over time then it's probably just typical 4WD, worn bushings, and miles. You should hear my Jeep.

Besides the chain it's also possible he meant bearing issues or just backlash (rotational play). I don't know Ford AWD cases well or I could give you some measurements. Tough to say by messaging. Usually you can jack up one end of the vehicle and check for play and backlash at the lifted pinion but that's somewhat pointless without a reference.

It could also just be normal 4wd noises and a mechanic who's used to gear-driven tcases vs. your chain. Maybe find another owner in your area you can compare notes/vehicles with?

Good luck.