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Old 03-31-2017, 05:31 PM   #1
merlin3
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ticking noise in trans

i have a TH 400 TCI new from summit in a 72 c10 2wd big block with about 50 easy miles since restoration i installed the speedo cable with no problems,when driving there is a ticking noise in the rear area of trans.when on jack stands in neutral and spinning the driveshaft you can hear it.any ideas? thanks in advance
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Old 03-31-2017, 05:34 PM   #2
spoon3210
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Re: ticking noise in trans

possibly a binding speedometer cable
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Old 03-31-2017, 05:39 PM   #3
kwmech
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Re: ticking noise in trans

missing return spring on parking pawl lever?
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Old 03-31-2017, 06:10 PM   #4
cdowns
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Re: ticking noise in trans

i'd bet on the tranny dust shield hitting the flexplate should go away after it is worn thru
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Old 03-31-2017, 07:33 PM   #5
garyd1961
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Re: ticking noise in trans

I'll go with the speedometer cable.
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Old 03-31-2017, 10:14 PM   #6
paul blair
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Re: ticking noise in trans

Quote:
Originally Posted by merlin3 View Post
i have a TH 400 TCI new from summit in a 72 c10 2wd big block with about 50 easy miles since restoration i installed the speedo cable with no problems,when driving there is a ticking noise in the rear area of trans.when on jack stands in neutral and spinning the driveshaft you can hear it.any ideas? thanks in advance
I searched around but haven't found anything yet! I can stop by Saturday or Sunday and lend an ear. let me know best time for you! Man it sure looks good!
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Old 04-01-2017, 07:53 AM   #7
merlin3
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Re: ticking noise in trans

thanks for the help,forgot to mention the speedo reads 10mph too slow and the odometer reads 400 miles but the truck has about 50 since build,no problem installing speedo cable.
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Old 04-01-2017, 08:48 AM   #8
67 chevelle
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Re: ticking noise in trans

converter bolts are suspect
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Old 04-01-2017, 08:55 AM   #9
Toms67
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Re: ticking noise in trans

Just a longshot. When I put an automatic transmission in my truck. I used the old flywheel bolts from the manual transmission. They were too long and hitting The edge of the oil pan. This was on 82 Ford 150.
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Old 04-01-2017, 09:41 AM   #10
merlin3
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Re: ticking noise in trans

so i just disconnected the speedo cable and the noise is still there when in neutral and spinning the driveshaft.the noise is very faint not loud but going down the road its annoying it is defiantly coming from the rear of trans were speedo cable goes in. is the park pawl spring a big deal to check?
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Old 04-03-2017, 05:52 AM   #11
James the III
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Re: ticking noise in trans

check the speedo. gears.. I'll bet the drive (on tail shaft)and driven( the speedo cable goes into) gears are jumping teeth.. or the end of the driven gear shaft at the speedo cable connection is cracked and the square cable end it opening and closing that crack..
I'll bet on the 1st.. as many don't match the drive and driven gears as many times it'll require the tail shaft housing to be removed..
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