I didn’t try spinning them with the truck off. I can try that on Thursday. The tires are all the same. The front right tire struggling to spin and looking like is getting stuck and then free and stuck again normal? Almost like it has some kind of friction for a short time? And is only happening to the right front wheel. The both tires on the left side were spinning at a constant speed. I just wanted to clarify.
I change the oil in the front differential yesterday. It was milky and gray looking. I did jacked up the truck up this morning and I had set it to 4l and had the wheels spinning and the right front tire struggles to spin. The front wheel more so then the rear. The left wheels spin freely. I have own the truck for the last 2 years and I haven’t had any issues until now. Last time I used 4x4 was about 4 months and it was working fine. U joints look fine. Btw is an 08 Silverado Ltz vortecmax.
My Silverado is having issues with the 4x4. It does Engage but it struggles. When I set the 4h it kinds of drags like something is holding it back and it makes a weird sound coming from the front end. If I set it to 4l it really doesn’t want to move. I have to give it a nice amount of gas for it to go but is feels like something is holding the truck from moving. I’m looking for ideas to pin point the issue. Thank you