DieselSmith

Ok my brother has a truck just like mine, but with the getrag 5 spd and 4.10 rear. when your say in 4th gear and going at like 30-35 with no throttle (basically lugging it) it growls kind of, makes a noise that comes from the tranny. how bad is this and how do you fix it?

Jethrro

If I were to take a shot in the dark I'd say bearings at a bare min. The rebuild doesn't look to bad got the manual on Pdf could send it to ya pm me if you want it. Bearings are around 250 to 300 and the replacement and rebuild don't know as I haven't done it yet... Jethrro

flashgordon

Have you checked the fluid? over filled it by one Quart?(this is a good thing)

PapeCAT

in 4th at 35 mine growls a bit too. I wouldn't worry, but if you can I would take a look and inpect it before a big important trip.

DieselSmith

thanks for the replies guys, sounds like he might need to check his fluids, then do the over fill. I'll tell him about it today.

dpuckett

I had one that growled at higher throttle in 4th. Turns out with 4.10s, that is like 1400rpm, a little low in the RPM band for the tranny to be just chipper and happy. Keep the RPMs up and it will increase the life of the tranny as well as extend his rebuild if he has to get one.

Check the fluid level and change it. Overfill by 1-1.5qt, like previously mentioned.

I got bearings & synchros plus an input shaft for $300 and change.

DP

wannadiesel

If it only growls in 4th at low RPM, it's gear rattle.