teleman Posted August 29, 2012 Share Posted August 29, 2012 I had picked up a couple nice shift knobs a while back and never gave it much thought until I realized the levers were 7/16 and the knobs are 1/2 inch.Before I get excited and cobb something up I thought Id ask you how to do it... Maybe a helicoil ??? or some type of insert before I break out the old welder...Jim Quote Link to comment https://www.bigmacktrucks.com/topic/27058-gear-knob-question/ Share on other sites More sharing options...
Maddog13407 Posted August 29, 2012 Share Posted August 29, 2012 most i have bought off ebay with the Mack logo have a helicoil kinda insert bushing. lets you put it on either size shaft... Quote Link to comment https://www.bigmacktrucks.com/topic/27058-gear-knob-question/#findComment-135537 Share on other sites More sharing options...
rsb502 Posted August 29, 2012 Share Posted August 29, 2012 agree with above, you can buy the inserts to match your thread pattern, if the insert is not available the make adapters that are about 2 inches long with one thread on each end(one male, one female) search evilbay or go to a hot rod shop/custom auto parts store you will find it.should be something like this (just not metric)....http://www.ebay.com/itm/AMERICAN-SHIFTER-Co-Shift-Knob-Adapters-Billet-Aluminum-Metric-Threads-Set-of-8-/330780669198?pt=Motors_Car_Truck_Parts_Accessories&hash=item4d0410750e&vxp=mtr Quote "Any Society that would give up a little LIBERTY to gain a little SECURITY will Deserve Neither and LOSE BOTH" -Benjamin Franklin"If your gonna be STUPID, you gotta be TOUGH" "You cant always get what you want, but if you try sometimes you get what you need" Link to comment https://www.bigmacktrucks.com/topic/27058-gear-knob-question/#findComment-135563 Share on other sites More sharing options...
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