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GMC Jim · 04-11-2007, 12:07 AM

sorry, can't help you on this speed control issue.... The speed control features you mention are all available in the after-market control I installed in my '71 GMC over 10 years ago....The control I have is manufactured by Rostra. You can google Rostra and I believe they have an 800 number which you could call to possibly upgrade your speed contol.... also you might check with a knowledgable parts guy at a Chev dealership... There might be available a control to your liking from a later model truck in your local junkyard

04-11-2007, 12:07 AM	#6
GMC Jim Senior Member Join Date: Dec 2002 Location: Portland, Oregon Posts: 901	Re: cruise control question sorry, can't help you on this speed control issue.... The speed control features you mention are all available in the after-market control I installed in my '71 GMC over 10 years ago....The control I have is manufactured by Rostra. You can google Rostra and I believe they have an 800 number which you could call to possibly upgrade your speed contol.... also you might check with a knowledgable parts guy at a Chev dealership... There might be available a control to your liking from a later model truck in your local junkyard __________________ '71 GMC;fleetside;PB/PS/AC/CC/402 Eng./Custom Paint/110,000act miles/3 fuel tanks(52gal).