A904 Pump Gears

This should help.
904 pump gears. lug style. 1960-2003 : The type you have.
904 pump gears. Milled flat style. 1993-2003
My catalog shows no size differences listed for either type(one size fits all in both cases?), just they two types, lug or milled flat.
It makes no difference if the transmission is a lockup or non lockup.
The rear clutch spring is listed for 904's from 1960-2003, but I don't know that they were in all 904's, although we did sell a fair number of them.
This is exactly what I needed! The measurements I was talking about was the the thickness. It says the 60-77 is .7460-.7470 and 78-up is .7476-.7489 so only a thousandth or so thicker. So I ordered the two lug style part number 12530A, which is listed as 78-up as that's all that available anyways. Only a thousandth difference, worst case it will just tighten my pump clearance by .001.

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