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Trucks Of The Month
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SETUP:
I use a 4-foot length of 2x12 with a 3/4 hole bored into the middle of
it as a work stand.
The hole is for the input shaft which protrudes slightly from the
bellhousing.
1)
With the trans standing on it's bellhousing
and with the tail shaft housing
removed, I use either a mototool or a "cape chisel" to remove
the "staked" portions of the two nuts on the tail shaft and
countershaft.
2) Now lock the transmission in two gears at the same time (With the top cover off,
push both the 1-2 and 3-4 synchro collars "down")
3) Using the two LONG bellhousing bolts at the
10-O'clock and 3-O'clock positions (to prevent the transmission from
rotating), use
a pipe wrench to remove the main shaft nut.
4) If you don't have a pipe wrench, use a large chisel against the flats of
the nut to drive it off (the nut is not re-usable anyway).
5) Repeat the procedure for the countershaft nut, though for that you may actually
have the 30mm socket you'll need.
6) Now, flip the transmission bellhousing up (a garbage pail half filled with paper
makes a nice work stand) and remove the front bearing retainer.
7) Remove the transmission from the garbage pail and put it back on the wood block.
8) Using a pry bar to apply upwards force on the rear bearing,
strike the end
of the output shaft with a brass or lead hammer.
9) Rotate the shaft between blows until you get the bearing off.
10) At this point, it's all 12mm socket work and simply disassembling things in
sequence, but will generally get you into whatever parts you have screwed
up.
If there are any questions, ask them and I'll revise this as needed...
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