I have a 2007 Ford f150 I replaced the passenger side CV axle and fixed the vacuum system i also installed the new IWE hub where it blocks off the vacuum and keeps the hub installed. This only on the passenger side. The truck still pops very badly when making sharp turns going in reverse in the left or right direction doesn't do it in forward. If it's just a slight turn in reverse it doesn't pop in reverse. Can anyone tell me what could be going on? Thanks in advance

 

I make a pooping noise when backing up sometimes but I'm old so I can get away with it.

 

Lol I meant *popping*

 

. .