Anti squeal caliper shims for VW t2 / t25 / t3 models running ATE calipers (Dual piston) 
Made from 0.9mm stainless steel with the tabs folded  , so 2 x 211615231 and 2 x 21161532  
VW part numbers are 
211615231  or 211615232 
You are buying a full set of 4 shims . 
(The tabs locate onto the section of piston that is missing , so pistons may require rotating to align the tabs . )

So fit vehicles from 
  • T2
    • 1971-1979
  • T25/T3
    • Air Cooled : 1980-1983
    • Diesel : 1981-1984
    • 1.9 Litre : 1983-1985