I need to replace the upper bolster bushing. Will I have to pull that top sector gear off or will it just pry off? I take it I remove the lower bolster and can then drop the upper bolster shaft out the bottom. Will I have to use a slide hammer to remove the upper bushing? The gearbox has a black grease in it. What do I put back in it? Will the pan on the motor hold the weight when I block it up? TIA.
- Thread starter Fudd
- Start date
Janicholson
Well-known Member
The pan will not hold any weight at all. Use the clutch housing behind the engine. Use more than just the jack, block it up with wood, not concrete.
The lower bolster is heavy and very awkward. just jack enough to get the tires just touching the ground, and get help. The shaft is held upward by the nut on the sector gear. It is also (now) held up by the taper in the gear. It will need some love taps, and propane torch heat to expand its taper grip on the upper bolster shaft. Do not hammer on the threaded shaft you will destroy the threads, Out the nut on flush with the top, and use a brass or alloy aluminum buffer to avoid damage. The grease in it now is probably corn head grease. It is appropriate to use that, red Mobil 1 synthetic chassis grease, or 90 wt gear oil. The 90 wt leaks out far easier than the others. Jim
The lower bolster is heavy and very awkward. just jack enough to get the tires just touching the ground, and get help. The shaft is held upward by the nut on the sector gear. It is also (now) held up by the taper in the gear. It will need some love taps, and propane torch heat to expand its taper grip on the upper bolster shaft. Do not hammer on the threaded shaft you will destroy the threads, Out the nut on flush with the top, and use a brass or alloy aluminum buffer to avoid damage. The grease in it now is probably corn head grease. It is appropriate to use that, red Mobil 1 synthetic chassis grease, or 90 wt gear oil. The 90 wt leaks out far easier than the others. Jim
Janicholson
Well-known Member
Down and out is the direction to go. The seal holds lube at the bushing. Jim
T in NE
Well-known Member
- Location
- Cambridge, Nebraska
Or use some heavy angle and/or channel iron to make a stand for it at the bellhousing. It'll come in handy if you need to do the clutch and work on the M through 560.
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