Upper control arm/ball joint difference

[Explorer Junky]

I have a 97 Ex AWD with the 5.0. Is there a difference in upper control arms between mine and my Dad's who has the same year, with the 4.0 and select track? The idiots at AZ say there is enough of a dif. to charge me 20 extra bucks for it. Something about it being beefier for the 5.0 and AWD system. It didn't seem to matter with the lowers at Napa! They don't look any different upon looking and comparing them. I think I will just stay with the Napa part and the lifetime warranty they have for the 20 extra bucks there.

 

[james t]

No difference, the driver's side the balljoint and arm is all one piece- the passenger side is 2 piece design with caster adjustment.