Often times when I'm on the Rockauto site (looking at various suspension and brake parts) there are some brands that come in two grades..."service grade" and "professional grade" . (like Spicer and Raybestos for example) The prices between the two grades can vary quite a bit in some cases. Looking at the pictures they have listed, the parts dont look all that different to me. (although I realize they use "representative" pictures in many instances)

Anyways, how much of a diference in quality is there between the two? Is service grade to be avoided? Have you bought service grade rated stuff? Your opinions please.....

Thanks, Kit / 86 GT / 90 Reatta

it depend on how long you will keep the the car i get service if it just a car they will keep for a few years . if it for a long time car get the good stuff . my buddy truck needed tie rod over 120 for pro grade under 47 for service he is going to trade the truck in in a year so the cheap one work fine