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73-87 Chevy _ GMC Trucks => Engine/Drivetrain => Topic started by: Militiaman55 on October 26, 2015, 07:34:44 pm

Title: TH350 Question/Issue
Post by: Militiaman55 on October 26, 2015, 07:34:44 pm
Hey guys!

Hopefully this is something simple. My truck is a 74 K10 with a 350/350/NP205 combo.

The objective is to select reverse from park. When the transmission is in park, I have to first select neutral in order to go back up into reverse. When I go from park to neutral, I don't feel any detents through the lever. However, after I drop into neutral and go back up to reverse, the detents are there, and it's a positive selection into reverse. There is no hesitation into gear and it's nice and smooth.

I've had the truck close to 10 years and it's always done this. It's never been a big deal as I can still quickly and reliably select reverse. I've been working out all the bugs over the years and this one is finally up. A little more info. I just dropped the pan and replaced the filter and 4 quarts of fluid. There was the normal black film, no metal flakes and no chunks in the pan. The trans goes into drive and reverse fine, and shifts well into all gears. Unknown mileage.

I'm hoping this is an adjustment or other simple issue. I've followed the linkage adjustment procedures in Haynes/Chilton manual with no improvement. Any ideas?

Thanks!

Rob.
Title: Re: TH350 Question/Issue
Post by: aaronboss221 on October 26, 2015, 08:10:50 pm
Mine was like that with drive. I had to go slightly passed it then back. It was a little rubber grommet under the hood next to steering column. Sorry I can't more thorough with names I am quite new.

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Title: Re: TH350 Question/Issue
Post by: Militiaman55 on October 28, 2015, 10:59:04 pm
I will thoroughly check my linkage. Thanks for your reply!

Rob.
Title: Re: TH350 Question/Issue
Post by: Irish_Alley on November 05, 2015, 11:11:04 pm
http://forum.73-87chevytrucks.com/smforum/index.php?topic=31459.0
i do have a couple left over
Title: Re: TH350 Question/Issue
Post by: Irish_Alley on November 05, 2015, 11:13:39 pm
could also be you just need to adjust the shifting linkage if your bushing/sleeve is in "ok" condition
Title: Re: TH350 Question/Issue
Post by: Dan75k20 on November 11, 2015, 10:08:18 am
The teeth on the gear slector inside the trans could be worn out.
Title: Re: TH350 Question/Issue
Post by: Militiaman55 on January 14, 2016, 11:29:25 pm
Thanks a lot guys.  I think it's actually the whole collar the lever goes into on the steering column. Pretty worn out there, but everything else I can see looks okay.