Excessive end play in the clutch packs.
Make sure it is not slack in the u-joints or diff first.
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| A-904 Drops into gear https://slantsix.org/forum/viewtopic.php?t=47023 |
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| Author: | tadyergey [ Fri Nov 18, 2011 8:07 pm ] |
| Post subject: | A-904 Drops into gear |
When warmed up and I shift my 86 D-100 225/A-904 into drive there is a loud "thunk" as the transmission engages that makes the entire truck shudder. This does not happen for reverse or when the tranny is not warmed up. Any idea where to look for the cause/fix? |
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| Author: | SlantSixDan [ Fri Nov 18, 2011 8:16 pm ] |
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How long since the last band adjustment? |
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| Author: | tadyergey [ Fri Nov 18, 2011 8:30 pm ] |
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No clue... Bought it about a year ago and am getting acquainted with her. what does that entail? |
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| Author: | Charrlie_S [ Sat Nov 19, 2011 5:51 am ] |
| Post subject: | |
Would not be a band adjustment problem. No bands are applied in drive/breakaway. First/reverse band is applied in manual low. First/reverse band is applied in reverse. Intermediate band is applied in second gear. No bands applied in high gear. |
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| Author: | ceej [ Sat Nov 19, 2011 5:50 pm ] |
| Post subject: | |
Does it do this while on fast idle? But why not in reverse? Hmmm. Valve body issue maybe. Sticky valve or misajusted shift linkage perhaps. CJ |
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| Author: | Charrlie_S [ Sun Nov 20, 2011 5:04 am ] |
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How high is the idle speed, whn it "bangs" into gear? |
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| Author: | slantzilla [ Sun Nov 20, 2011 7:29 am ] |
| Post subject: | |
Excessive end play in the clutch packs. Make sure it is not slack in the u-joints or diff first.
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| Author: | tadyergey [ Mon Nov 21, 2011 2:42 pm ] |
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I am adding a Tach to see how fast it is idling. I am having choke issues and it does idle very fast. How do I check to see if it the rear-end? |
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| Author: | slantzilla [ Mon Nov 21, 2011 3:28 pm ] |
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With the truck in neutral and the wheels blocked so it won't roll over you, crawl under it and turn the driveshaft back and forth by hand. If you can turn it more than 1/4 turn or so you have rear/u-joint issues. |
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