F 350 4WD Pickup V8-351 5.8L VIN H EFI (1997)
5. Heat the 5th-reverse synchronizer body with a Precision Metal Gear/Bearing Heater 164-R3900, Heat Gun 107-R0300 or equivalent to 160° C
(320° F).
CAUTION: Do not heat synchronizer body for more than 15 minutes.
6. Position the synchronizer body on the mainshaft so that the side with the deeper hub faces down and the short lugs on the synchronizing ring (part
of synchronizer) engage in the shallow gaps in the synchronizer body. Push or lightly tap the synchronizer body down until it stops.
7. Install the snap ring (part of small parts repair kit) on the mainshaft next to the 5th-reverse synchronizer body. The clearance between the snap ring
(part of small parts repair kit) and the synchronizer body should not be more than 0.1 mm (0.004 inch) with zero clearance preferable.
CAUTION: Make sure snap ring (part of small parts repair kit) is free of burrs before checking clearance.
8. Check the reverse gear end play. End play must be between 0.15-0.35 mm (0.00591-0.01378 inch).
9. There are two grooves on the 5th-reverse sliding sleeve (part of synchronizer). With the two grooves facing up (toward output end of mainshaft),
position the sliding sleeve over the synchronizer body (both part of synchronizer). In three positions on the sliding sleeve, three teeth have been cut
