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I have an '81 Silverado. I want to switch from auto. trans. to 4speed standard. This truck came with an auto. trans. My question is: Does anyone know if there is a shifter "knockout" under the carpet of my truck, and the same for a clutch pedal rod? Also, will I need to lengthen/shorten the drive shaft? Thanks........
 

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if i remember correctly there is a plate for the floor shifter and you need the pedal assembly for the clutch arm. i not done the swap on a chevy in awhile but on the Ford the shaft needed to be adjusted. might visit a pick-n-pull or used trruck lot and take some notes or pictures or both.....mike
 

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Thanks Mike, there is a u-pull-you -pay down here. I will try them Sat. A/M. Their site shows a '68 Chevy. not sure that will fit though. Their cross reference books should tell me.
 
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