it started yesterday while backing up weird it like a clutch slippage but i just had clutch changed at 35k with the tsb update now 55k on truck. no smell it like a slight slippage in rev and 1gear going to investage today to dark lastnight when i got home mabey a bad u-joint ??and just had rear diff fluid changed??? i dont know ????
any ideas to point me in the right direction???

 

U joints are dry causing the skipping.

There are like 500 posts on this subject. Do a search you'll find plenty of info.

 

i did search the posts but wasnt sure what it was ?? clutch,u-joints or driveline angle?? or maybe something else??

 

so i guess it the u-joints?????? how do i check them for some reason i cant get it to do what it was doing last night