Improv tools don't need to be pretty, just functional.
Spanner is easy, couple of bolts though some old tube or 1/4" flat....……..
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For the yoke, mine is just welded 1/4" flat stock drilled for a 7290 yoke pattern on one end of and old "persuader". I can use a 2 jaw on the long outside of it to pull the yoke off once the nut is off.....
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My holding fixture is 1/4" angle that bolts on the engine stand...……...
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