[Terry,OH]

In the USA the 35 pitman arm clocking on the sector shaft was changed 2 degrees. The change from the original to the modified 35 pitman arm reduced road shock and steering end play. It was used with the original style sector shaft only! This pitman arm also had the letters "RP" embossed. Both the original and the early modified pitman arm have the basic pat number 48-3590 the modified pitman had an additional suffix of RP. Later in 35 a new sector shaft was used (with identifing chisel mark on the threaded end and a hole for cotter pin) the RP style pitman was NOT used with this new style sector shaft. The attachment hardware for the pitman to the sector shaft also changed with the new style sector and a cotter pin was installed.