Clanking trans

General help and support for your Lindeman through 2010 John Deere crawler
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Jirving43
40C crawler
40C crawler
Posts: 23
Joined: Wed Jan 30, 2019 5:43 pm
Location: Wasilla, Ak

Clanking trans

Post by Jirving43 » Tue Jun 11, 2019 3:27 pm

In my 59 440 ICD (Studebaker powered NO REVERSER) I have a clanking noise in R,1,2,3 gears in forward and reverse.. All gears look ok when I pull the shifter cover off.. Any ideas?

original possum
440 crawler
440 crawler
Posts: 158
Joined: Wed Sep 11, 2013 3:34 pm
Location: Shiner, texas

Re: Clanking trans

Post by original possum » Wed Jun 12, 2019 10:12 am

Is the clanking related to ground speed or does it change with changing gears (in other words: Is it related to ring gear or transmission)? If it is related to ground speed then the problem is probably in the ring gear. If it changes with the gears it is probably transmission. If it is transmission the frequency will help you determine which shaft (gear) or bearing. Input shaft and gear will vary with rpm regardless of gear. If 4th is straight-through (I do not recall) and doesn't clank the look at lower shaft.
Early 40C w/Yakima toolbar and homebuilt ripper: 350 w/6-way

Jirving43
40C crawler
40C crawler
Posts: 23
Joined: Wed Jan 30, 2019 5:43 pm
Location: Wasilla, Ak

Re: Clanking trans

Post by Jirving43 » Sun Jun 16, 2019 9:01 pm

So it does it in 1,2,R the clunk is one time per revolution of the trans input shaft, both front and rear bearings and races on input shaft are new. The gears in case have some wear but nothing terrible, no broken teeth and neither of the other transmission shafts feel loose.

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