TACHOMETER DRIVE REMOVAL

borrow a puller from a Case shop or make one according to the instructions in an I&T manual. Threads on tach drive are 3/4-20 u.n. extra fine.
 
I used a male case coupler. Took the guts out of it, used a 3/8 bolt thru the open hole, piece of pipe large enough to allow the drive assembly to pass thru it and a thick washer wide enough to bridge my pipe.
Don't really understand why case threads and tachometer threads are the same but they are. Tom
 
Drop the oil pan and use a long drift.Knock the drive out from the bottom up. A bit more work than getting a puller, but if your 30 miles from town and the dealer is not willing to lend tools, this may be an option.
 

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