Jerr Dan slide / wear pad.  This pad fits on the subframe, where the bed slides.  This pad fits standard duty BIC (Best In Class) Jerr Dan carriers.  

Should fit the following bed model numbers.
NGAF, NGAD, NGAR, WSRB, RRSB, SLPB, NGAT, STRB, WAVB, RAYB, PAVB, ATRB, AWLB.

0.38 Height
1.65 Width
23.75 Length
3 recessed bolt holes



(# 1 on the diagram below)