68 gmc auto shifter trouble... - The 1947 - Present Chevrolet & GMC Truck Message Board Network

57sailplane · 06-16-2007, 12:36 AM

Hey guys,

My boys truck has started shifting out of park and back in real hard. its like when you pull back to shift its not releasing or something.. sometimes its hard to shift from neutral to drive.. you guys ever dealt with this. is this an easy fix. your help is greatly appreciated..

thanks Andrew

lbpd719 · 06-16-2007, 01:26 AM

have someone move it around for you while you look at the mechanisim and see if you can see it binding anywhere..

Does it do it all the time, or just when its running??

57sailplane · 06-16-2007, 05:13 PM

all the time and is only getting worse...

ya i already had the boy shift it and i looked at the shift linkage on the fire wall side. theres like a ball that runs in a divet plate for each gear. theres a major lump on the plate that the ball goes over into park. i greesed it and it did not help. once you get it to shift into park or drive and you hold the sifter towards you it shifts easy cause the ball or ball area on the linkage is retracted from the plate. it has to do with somthing that makes that ball lift away from the divited plate. i just don't no what. i was hoping there was an adjustment some were.. dont really want to rip outh the colomn..

Robert1970C20rstbukt · 06-16-2007, 05:56 PM

When you move the shifter you have to pull(or "lift") the lever towards you to clear the stops. It prevents accidentally shifting from drive to reverse, reverse to park, drive to L2, etc. Are you doing that or just trying to push the shifter without lifting it?

68caliRat · 06-16-2007, 06:04 PM

Quote:

Originally Posted by Robert1970C20rstbukt

When you move the shifter you have to pull(or "lift") the lever towards you to clear the stops. It prevents accidentally shifting from drive to reverse, reverse to park, drive to L2, etc. Are you doing that or just trying to push the shifter without lifting it?

I have the same problem about every 5 years or so. I just have o lubricate the mechanism and it works fine. But i didn't know about the lift thing when I was a teenager. My dad was with me once and saw how hard it was to shift and told me to pull on the selector..I never knew until then...

57sailplane · 06-17-2007, 01:47 AM

yes,

i am pulling back ont the shifter and i greesed the area with the detent... were else can i lubercate without total disasebly..

06-16-2007, 12:36 AM	#1
57sailplane Senior Member Join Date: Mar 2004 Location: Nebraska Posts: 583	68 gmc auto shifter trouble... Hey guys, My boys truck has started shifting out of park and back in real hard. its like when you pull back to shift its not releasing or something.. sometimes its hard to shift from neutral to drive.. you guys ever dealt with this. is this an easy fix. your help is greatly appreciated.. thanks Andrew

06-16-2007, 01:26 AM	#2
lbpd719 Zappaphile! Join Date: Apr 2007 Location: Los Banos, California Posts: 228	Re: 68 gmc auto shifter trouble... have someone move it around for you while you look at the mechanisim and see if you can see it binding anywhere.. Does it do it all the time, or just when its running?? __________________ 1969 C20 LWB Camper Special - The Beater.. 1998 Cheyenne V6 - 4/6 Drop - For The Son

06-16-2007, 05:13 PM	#3
57sailplane Senior Member Join Date: Mar 2004 Location: Nebraska Posts: 583	Re: 68 gmc auto shifter trouble... all the time and is only getting worse... ya i already had the boy shift it and i looked at the shift linkage on the fire wall side. theres like a ball that runs in a divet plate for each gear. theres a major lump on the plate that the ball goes over into park. i greesed it and it did not help. once you get it to shift into park or drive and you hold the sifter towards you it shifts easy cause the ball or ball area on the linkage is retracted from the plate. it has to do with somthing that makes that ball lift away from the divited plate. i just don't no what. i was hoping there was an adjustment some were.. dont really want to rip outh the colomn.. Last edited by 57sailplane; 06-16-2007 at 05:19 PM.

06-16-2007, 05:56 PM	#4
Robert1970C20rstbukt Registered User Join Date: Jun 2004 Location: Beeville, Texas Posts: 1,943	Re: 68 gmc auto shifter trouble... When you move the shifter you have to pull(or "lift") the lever towards you to clear the stops. It prevents accidentally shifting from drive to reverse, reverse to park, drive to L2, etc. Are you doing that or just trying to push the shifter without lifting it? __________________ RJD 1984 Chevrolet C30 welding truck 454/SM465 1977 GMC C15 pickup 350/TH350 1970 Chevrolet C20 pickup 350/TH400 1970 Chevrolet K20 Suburban 454/TH350 1969 GMC 8500 478M V6/5 spd winch truck Last edited by Robert1970C20rstbukt; 06-16-2007 at 05:58 PM.

06-17-2007, 01:47 AM	#6
57sailplane Senior Member Join Date: Mar 2004 Location: Nebraska Posts: 583	Re: 68 gmc auto shifter trouble... yes, i am pulling back ont the shifter and i greesed the area with the detent... were else can i lubercate without total disasebly..

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