Rear diff fluid

[JonnyTahoe]

I hear a lot of diff noise at 70 MPH + but my Tahoe only has 74k on it.

Then it goes away when you let off the pedal? That is low miles do a lot of towing?

 

[Dantheman1540]

I don't have 400+ power like you do the only thing locking at Wide Open Throttle is my power door locks.

That's a good one!

 

[JonnyTahoe]

those good for welding up a unit! otherwise good for scrap.

My brother did that to a 70 Chevelle. Had a welding shop that makes Trailers weld those gears together.

 

[bigdog9191999]

sorry guys, yes I mean weld the rear up as in spooled/locked. I don't recommend it in a daily driven street vehicle or much street use in a heavy truck like these, but for race/offroad ect it has its uses.