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Old 12-05-2007, 11:55 AM   #1 (permalink)
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Dreaded sm465 "ticking" noise?

What the hell causes this sound? I have heard of other people having it but never have heard of anybody knowing what causes it, r how to fix it.
Mine will start to do this "ticking" sound under deceleration. When it starts it will do it in any gear, clutch in or out, in neutral, and even when in neutral just sitting still. The tick can get so agressive sometimes that if you have your hand on the shifter you can feel as well as hear it of course. In another thread I saw people mentioning loose pinion nuts, but I checked mine and they are tight, so it has to be in the trans.
Also, I know it is not in the tcase because the noise is not coming from there it is coming from somewhere in the trans.
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Old 12-05-2007, 03:45 PM   #2 (permalink)
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Have you opened the case up yet? My diff made a wicked ticking noise when the gears were going bad, so i suggest checking them.
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Old 12-05-2007, 04:19 PM   #3 (permalink)
 
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sounds like it has something to do with the idler gear, is probably the gears going bad.
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Old 12-05-2007, 04:22 PM   #4 (permalink)
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Have you opened the case up yet? My diff made a wicked ticking noise when the gears were going bad, so i suggest checking them.
Its not in the diff, the gears are only six months old and were properly installed. the noise is not coming from the diff.

Is the top of the 465 hard to remove?
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Old 12-05-2007, 04:34 PM   #5 (permalink)
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sounds like it has something to do with the idler gear, is probably the gears going bad.
can I open the case up to look at this, and is there anything to look for to tell me if there is something wrong with it?
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Old 12-05-2007, 05:25 PM   #6 (permalink)
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Sorry, I know it isn't in the diff. I meant that my dif made a tick sound when its gears were going bad, and you should check the gears in your transmission.

Neil
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Old 12-05-2007, 07:27 PM   #7 (permalink)
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Yeah I need to chech them, can I check them buy lifting the top off?

Anybody think this could be te syncros going out? It is nearly imposible to shift from third to second when mooving, as soon as I come to a stop it will drop right into second from third no problem. I can go from fourth down to third really smoothly, and from second up to third easily also. Of course second to first there is no syncros.
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Old 12-05-2007, 08:07 PM   #8 (permalink)
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I just swaped my 465 for another one (mainshaft bearing). They both won't go from 3 down to 2 over 10 mph.

The top comes off pretty easy. I don't know if it fits through the floor though. The trick to pulling the top is having the tranny in half reverse gear. The reverse fork is blocked by the other gears the rest of the time.
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Old 12-05-2007, 09:06 PM   #9 (permalink)
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About 10 years ago I had something very similar happen with the manual tranny in an old Ford Ranger. Exact same symptons (wouldn't downshift to certain gears at speed, made noises under deceleration, etc). 2 local shops told me that it was the syncro(s). I just swapped in a junkyard tranny, but two respected shops told me the same thing, so...

You might be able to get a good look inside by pulling off the PTO cover? Not sure cause I never had mine off, but worth a shot.

Check with some local junkyards. 465's are usually pretty cheap.
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Old 12-05-2007, 09:45 PM   #10 (permalink)
 
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I would try to do some more research, use the search button and search on here, i saw another thread about this same thing not that long ago. Or you can check your local junkyard and pick up another 465, there a dime a dozen and easy to find.
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Old 12-05-2007, 10:51 PM   #11 (permalink)
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yeah I followed that thread also, there was never any final info on what it was that caused the noise.

I will definitly try taking off the PTO cover to see what I can see.

How much should I expect to pay for a 465 from a junk yard?
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Old 12-06-2007, 05:57 AM   #12 (permalink)
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i picked up a 465-205 for 75 bucks, minus the bell housing. My guess is somewhere around there.
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Old 12-06-2007, 11:17 PM   #13 (permalink)
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you guys really should try checking the coupler between the sm465 and the NP205.
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Old 12-06-2007, 11:24 PM   #14 (permalink)
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oops, I guess I forgot to mention that it is coupled to a dana 300 with an advanced adapters adapter.
Does that make a difference?

Hopefully going to get time tomarrow to open up the PTO plate.
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Old 12-06-2007, 11:27 PM   #15 (permalink)
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does it have a stub shaft between the two? if so, check the condition of the splines on the stub and on the output of the trans.
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Old 12-07-2007, 12:00 AM   #16 (permalink)
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ummm I don't know. The last time I had the tcase off the trans the shaft that was showing looked perfect no slop in any direction and no strange wear marks.
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Old 12-07-2007, 12:04 AM   #17 (permalink)
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was that before you started hearing the clicking?
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Old 12-07-2007, 12:14 AM   #18 (permalink)
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no I started hearing the clicking months ago.
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Old 05-01-2016, 08:20 AM   #19 (permalink)
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no I started hearing the clicking months ago.
Did you ever figure this out?
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Old 05-01-2016, 01:13 PM   #20 (permalink)
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Did you ever figure this out?

Yes. I had the Trans rebuilt by a good Trans shop bear auburn, ca. Sierra transmissions.
Turned out to be a hack job of turning a 2wd Trans into a 4wd Trans and making the adapter work for the D300 adapter.
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Old 05-01-2016, 11:15 PM   #21 (permalink)
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Yes. I had the Trans rebuilt by a good Trans shop bear auburn, ca. Sierra transmissions.
Turned out to be a hack job of turning a 2wd Trans into a 4wd Trans and making the adapter work for the D300 adapter.
Did they say specifically what in the trans was messed up? Mine is acting similarly. I hope it will last a couple days in moab.
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Old 05-02-2016, 10:20 AM   #22 (permalink)
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I can't remember what it was exactly. It had to do with the output and some retaining clip that was not done properly. I think. It was over 5 years ago.
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