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Unread 12-01-2014, 14:55
AndreaV AndreaV is offline
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Re: Thoughts on the new AM14U 2014 KOP Drive train?

For those of you wondering what is required to upgrade to a 3 cim ball shifter, I just quickly popped one in there to show you.


You will need the 3rd stage kit, unless you like your high gear at 26 feet/s .The plate of the 3rd stage kit is highlighted behind the AM14U rail in the pic .You can see the the heads of the bolts coming through, those are the holes you will need to transfer onto the AM14U chassis . The output shaft will also need to be cut so that it fits within the frame perimeter.

The easiest way I can suggest you locate and drill those holes:

1: Put a 1.125 bearing in through both the inner AM14U frame and the 3rd stage plate. The location of the output shaft is crucial, a bearing will locate it nicely.

2: Use a transfer punch set to find the closest fit to the holes in the 3rd stage plate

3: Choose the orientation you desire, using the 3rd stage plate as a guide. In the pic I posted the top of the 3rd stage plate is parallel to the top of the frame. Any orientation that provides you sufficient ground clearance should work, as long as the output shaft is located properly with a bearing, and there's enough metal to drill into, you should be good to go.

4: KA-Punch!

5: Remove the 3rd stage plate, it's job is done. Drill as accurately as your facilities allow, I would recommend you center drill before drilling if at all possible, and use at least a drill press. Take your time!

6: Re-assemble, if you use the 3rd stage plate in the assembly keep in mind your hex spacers may need modification.
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