Grinding sound from T-case

The title says it all. I am getting a grinding sound from my tranny/t-case in all gears. There is no impact on performance, but I wanted to see if anyone else has experianced this.

 

It would be helpful to describe your Jeep - year, engine, transmission, modifications, etc.

 

tag

 

grinding ( or any other abnormal ) noise is always bad, time for a closer lookk into the problem. Looks like a probable rebuild of the trans, t-case or both

 

if you are getting a grounding sound, stop driving that thing and get looking into the problem. No grinding sound is a good thing. Any grinding sound is a bad thing. Most jeep shops will give you a set tear down and rebuild labor quote, you pay extra for any parts needed. That way you can control the cost.

 

1975 CJ-5 w/ 304. No real drivetrain mods, just a centerpoint dual friction clutch. T-90 tranny, never rebuilt.

 

If it has a T-90 then there has been a drive train mod as that was never offered in '75 with the 304.
3 basic tranny's offered '72-'75
T-14 3 speed behind the I-6
T-15 3 speed behind the V-8

T-18 close ratio 4 speed. I know they were offered behind the I-6 but cannot remember if offered behind the V-8


I agree with the others. If you have grinding it needs to be inspected and most likely rebuilt.

 

I have the same problem that just started happening. It only grinds when I take my foot of the accelerator and the engine "lugs". For me it sounds like probably bearings in the transmision. I got a t14 which isn't really the best tranny in the first place. this is my second one. Anyways, I already took the inspection plate off and one day plan to have a friend drive while I listen around with a stethiscope. A long screwdriver works too. This method works unbelievably well for pinpointing where a noise is coming from. Also, I've been tied up in other projects latley, but I bet when I finally pull the drain plug on the tranny and t-case, one of them will probably dump an unusual amount of metal debris.

 

How difficult is it to drain the transmission and transfer case? Does anyone have detailed instructions on this procedure? Wouldn't this be an inexpensive maintenance project?

 

Remove plug from bottom of transfer case pan and bottom of transmission. Drain into acceptable receptacle. Inspect fluid for debris and dispose of in approved fashion. Refill with appropriate fluid to the bottom of the fill holes.

 

What are your feelings on the Lucas Oil products?

 

Love the Lucas used it for years in many different applications works mint wont cure a bad part though check the fluid that comes out for metal and repair the mechanical stuff that may be bad