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#1 |
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Location: Dorr MI
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Yesterday I drove the parts truck to clean off some of the crap that was on it from sitting for years. Before driving I sprayed some PB blaster around the linkage area where it comes out of the firewall. The truck seems to have no issue finding reverse or 1st gear, but it seems almost impossible to find 2nd or 3rd gear? Does this seem more like a column issue or something in the linkages to the trans?
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#2 |
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Join Date: Mar 2012
Location: Boulder, CO
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Re: 3ott issues?
Make sure it's (the linkage on the column) is adjusted properly, before condemning anything. Easy way- loosen the shifter rods at the column arms, put transmission neutral, center the shifter arms (neutral position), tighten everything down, lube anything that moves and check operation. If there's still problems, the column may need overhauled- there's bushings that can wear and cause sloppy and erroneous engagement.
Or put in a T5, like I'm doing. Posted via Mobile Device
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#3 | |
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Re: 3ott issues?
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#4 |
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Re: 3ott issues?
If it's an early (67-72) the rods are adjustable on the steering column end, on the later 'square' models, the adjustment is at the tranmission end of the rods. A 3/16"-7/32" rod, i.e., a drill bit, is used to center the shifter arms on the steering column. There are holes in the shifter arms that facilitate this, once you've got the arms pinned together, make sure that the transmission is in neutral and snug down the shifter rod ends. The older ones are easier- everything is on top. The newer ones, well, time to get down and dirty.
Posted via Mobile Device Posted via Mobile Device
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#5 | |
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Re: 3ott issues?
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#6 |
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Re: 3ott issues?
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#7 | |
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Re: 3ott issues?
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#8 |
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Re: 3ott issues?
Is it only whilst the engine is running? Can you run through the gears OK with the engine off?
I had this problem with a car of mine a while ago. Would shift fine when not running, but on the go and I had to use both hands to get in in gear. Problem was a loose bracket. Not sure how a C10 3OTT is set-up but my old car had a bracket that the linkages attached to, which was bolted to the bellhousing or the frame (can't remember). All it did was keep the linkages aligned properly. The bolt kept coming loose, causing too much slop in the linkage rods. Tightened it up with some loc-tite, and never had the problem again. Trying to looking my factory assembly manual for a layout to see if it has something similar, but you'll probably have the problem fixed by the time I find anything in that book. What a jumbled mess. |
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#9 | |
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Re: 3ott issues?
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#10 |
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Re: 3ott issues?
As mentioned above the first thing is to make sure you have the rubber bushings on the transmission linkage arms top and bottom and they're not wallowed out or loose (bottom pic from bobschevytrucks.com). Make the column arm adjustments then the link arm adjustment with the tranny in neutral position. Also, make sure the arms are not criss crossed or binding when you shift. Have someone shift while you watch the links. If they're rubbing you can rotate them slightly to get clearance.
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Re: 3ott issues?
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#12 | |
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Re: 3ott issues?
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Sorry don't have a pic of the shift levers with them installed. Here's a newer kind on this thread. http://67-72chevytrucks.com/vboard/s...d.php?t=483060 Forgot to add this thread that shows the levers with grommets installed: http://67-72chevytrucks.com/vboard/s...d.php?t=256851
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68 GMC 250/3 speed Saginaw p/b p/s 69 Chevy 350/350 currently in pieces still lookin for a cab 06 Trailblazer I just want a vehicle that I can work on, that won't talk to me, leave error msgs or keep track of how I drive... Last edited by 68gmsee; 02-12-2013 at 10:45 PM. |
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#13 | |
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Re: 3ott issues?
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