A Arm Bushing ID Help
 

Set of 4 A-Arm bushings - part number PB-12P Poly-Graphite. Front part# PB-012F. Rear part# PB-012R. Numbers on 2 of the 4 bushings are M02558, the other 2 are M02557. ID on each looks to be same. OD looks to be bigger on 2557 by about 1mm due to thicker wall.

Can someone tell me which is front and which is rear? 2 different parts houses selling the kit were unable to tell me which is which. Appreciate any help.

http://forums.pelicanparts.com/uploa...1101851908.jpg

Through additional search, I found the following thread from 4/03 that will help anyone else with this issue. Also search on zirks for a bunch of good bushing history. Thanks.

http://forums.pelicanparts.com/porsche-911-technical-forum/107906-arm-bushing-question.html?highlight=zirk