Dealer Service Information Bulletin 68-I-62 – 1968 Turbo Hydra-Matic Center Support Locating Procedure and Service Tool

Bulletin 68-I-62 — Pontiac Motor Division Dealer Service Information Bulletin, Section 7E, dated April 22, 1968. Attention: Service Manager.

Subject: 1968 Turbo Hydra-Matic Center Support Locating Procedure and Service Tool.

Short answer: A manufacturing change eliminated the threaded hole used to locate the center support during torquing of the locking bolt. A new service tool (Kent-Moore J 23093) is now required; it can be purchased for $2.95 or fabricated in the shop. The tool and procedure apply to all Turbo Hydra-Matic transmissions, past and present.

Obtaining the Tool

The center support locating tool, part number J 23093, may be purchased for $2.95 from:

Fabricating the Tool

1. Make the tool from 3/8″ (0.375″ dia.) cold rolled steel, or from a screwdriver with a 3/8″ dia. shank. The stock should be approximately 12″ long.
2. Grind the stock to a blunt point, tapering it 7/8″ from the end of the bar to a 1/8″ dia. at its end.
3. Bend the stock to a 45° angle, 2-1/2″ from its blunt point. (See Figure 1.)

Using the Tool

1. Place the center support locating tool into the case direct clutch passage, with the handle of the tool pointing to the right as viewed from the front of the transmission and parallel to the bell housing mounting face. (See Figure 2.)
2. Apply pressure downward on the tool handle, which will tend to rotate the center support counterclockwise as viewed from the front of the transmission.
3. While holding the center support firmly counterclockwise against the case splines, torque the case-to-center-support bolt to 20–25 ft-lbs.