Technical Bulletin
Bulletin No.: PRO-05-11 Effective Date: 12/2/85 Page: 1 of 1
Subject: PL-20 Propar and Rockwell Applications
It has come to our attention that the “SPLINE” dimension published for two popular
PL-20 slack adjusters is incorrect. It should read 1-5/8” for piece number 183411
(Propar application) and 1-15/32” for piece number 286965 and 103345 (Rockwell
application).
The Propar and the Rockwell application are the two best selling slack adjusters in the
market. Both are standard on most trailers and Rockwell axles are on many tractors.
Let your customers know that you have the slack adjuster for their application with an
attractive price as well.
Please make changes listed below to the following literature:
*Piece number 103345 is the new piece number used for Service New for the Rockwell
application. Piece number 286965 is only Remanufactured Exchange.
DISCARD THIS BULLETIN AFTER MAKING CATALOG CHANG ES.