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Old 08-10-2015, 10:32 PM   #1
danger1138
Scooby Specialist
 
Member#: 279525
Join Date: Apr 2011
Location: QUEENS NY
Vehicle:
04 rex luger!

Default No good threads

Hey everyone, first time posting in this section. Need some insight as to what to do here. So i bought and installed a kartboy short shifter about 2 years ago. Its made for a five speed. My shift knob, an aftermarket wc lathe werks weighted knob (m12x1.25) has never properly threaded unto the shifter lever. Its sits tight on it but its cross threaded on the shift lever. I never cranked all the way with all my might because its holding steady and not going anywhere.

Anyways, i just received & tried installing a shifter extender the other day, same thread pitch and size, M12x1.25 , and it doesn't screw unto the shifter lever. The afore mentioned shift knob screws on perfectly to the shifter extender, the extender on the other hand does not screw on to the short shifter lever, which by all accounts from kartboy is only made in M12x1.25 fashion.

The threads on the top portion of the shifter lever seem compromised. Can i re-thread this short shifter lever using a die set on top of existing threads or should i just cut off the bad (compromised threads section) portion and move on with life? Thanks for your input peeps.
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Old 08-11-2015, 03:05 AM   #2
Russell Rogers
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Member#: 27261
Join Date: Oct 2002
Chapter/Region: NWIC
Location: Wa
Vehicle:
1999
I'm Ron Burgundy?

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fix the threads using a thread restore kit. If you are skilled at using a die you can restore it that way although sometimes the boogered thread path will transfer to the clean treads. A cutting die cuts deeper while a restoring die reshapes the threads. This is the thread restore kit that I use. Its made by the same company for Snap On and Craftsman. it works well

http://www.craftsman.com/craftsman-4...p-00942275000P
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Old 08-11-2015, 09:14 PM   #3
danger1138
Scooby Specialist
 
Member#: 279525
Join Date: Apr 2011
Location: QUEENS NY
Vehicle:
04 rex luger!

Default

Thanks for the input.
I was watching a few videos on YouTube regarding fixing damaged threads (external) and alot of people used a die of the right pitch of the bolt In order to fix the damaged threads on a bolt.

Im looking into purchasing a tap and die set in order to fix this ordeal, but none that ive seen for sale (metric sizes) offer a m12x1.25 size. Just m12x1.50 or m12x1.75
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