A100 Idler Arm

I am in the process of ordering new suspension and steering parts for my A100 van, on various websites looking at parts I have seen an Idler arm, I have been under my van and cannot even see one,am I missing something? or is this a power steering part only as my van is manual steering. cheers Chris.
Spooks, I have a 65 A 100 truckdodge-a-100-parts-02-03-pictures-front-axle-648x461.jpg and I didn't remember mine having a idler arm but I forget a lot anyway. I Googled this, I hope it helps .