Jumping out of 3rd gear is a common problem for regular 3 speeds and overdrive transmissions of that era.
External causes can be from worn u-joints, worn front yoke, out of balance driveshaft, and sloppy shift linkage.
Internal wear components consist of worn syncro rings/drum, 2/3 shift fork, collapsed spring ring on the clutch gear,
worn rear bushing, worn bearings, and worn teeth on clutch gear. The OH kit for a regular 3 speed should consist of front & rear bearings, rear seal, needle bearings & thrust washers, rear bushing, and gaskets.
It will not give you the rear bearing for the OD which is a number 6206. The OD gasket set is different, also you need the
solenoid seal 3060 and OD shifter shaft seal 6130.
Fred
Note: Parts such as syncro's are getting hard to find and priced to match. You may wish to use the good parts from the regular 3 speed in the OD trans.
Last edited by rfs56trk; 04/28/2018 3:27 PM.
