Dealer Service Information Bulletin 68-I-30 – Revised Converter End Play Procedure

Revised procedure (replaces page 7F-27 of the 1968 Pontiac Service Manual):

1. Fully release the collet end of tool J 21371-2 by turning its brass nut clockwise.
2. Install the collet end of tool J 21371-2 into the converter hub until it bottoms, then tighten the brass nut to 5 lb. ft. (Fig. 1 in the scan below).
3. Install tool J 21371-3 and tighten the hex nut to 3 lb. ft. (Fig. 2).
4. Install Dial Indicator J 8001 and set it for zero while the plunger rests on the brass nut of tool J 21371-2.
5. Loosen the hex nut while holding the brass nut stationary, allowing the converter internal assembly to lower until the dial indicator shows that the internal assembly has bottomed (Fig. 3).
6. The reading obtained on the dial indicator represents converter end clearance. If clearance is under .050″, the converter is acceptable. If clearance is .050″ or over, replace the converter.

This is a transcription of the original dealer bulletin for easier reading and search. The complete original scan, including the figures, is shown below.