t case slipping?

[93gtpeater]

I got my car all together and started driving it around. I slowly rolled into the throttle and it started to pull and pull then it stop pulling as hard and it started to make highish pitch sound. When on the throttle.but this is not full throttle. It doesn't seem like my clutch. Car drives just fine and makes no noises. I was think t case? Something is slipping and grinding at the same time.

[311evo]

If the t-case was that bad I think it would be screaming at you.

[93gtpeater]

Well I check it out and it seems to be find must be the rear end cause its starting to grind and bind. So I will try to drain the fluid out tonight.

[Goat Blower]

The t-case can't slip unless the gears inside are completely stripped, in which case you'd go nowhere unless you have a welded center diff. Are you sure you have a matching t-case to your output shaft? Meaning both are 22 or 23 spline?

[Goat Blower]

I'd also check your viscous coupling. I haven't heard of one going out, but those would be the symptoms.

[93gtpeater]

Iam sure the t case spline is the same as the tranny. Iam going to check the rear diff fluid first. I know the tranny has to be good cause it worked fine the last time it was in the car.