348 Possible 348 Transmissions Problem - Ferrari Life
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post #1 of 3 Old 11-09-2014, 06:48 AM Thread Starter
Join Date: Apr 2012
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Possible 348 Transmissions Problem

I have noticed that if I suddenly let off the gas I get a definite clunk from the right hand axle area that sounds like it is coming from the area of item 4. Since I have the engine out for a major now is the time to check further. If I rotate each axle back and forth the LH side has no lost motion, conversely the RH side has a inch or more and a definite clunk that sounds like it is coming from close to item 4 on the attached drawing.

Before proceeding I would appreciate some recommendations from the FLife brain trust on the likely cause and how to correct. When I drained the gbox there was zero metal on the plug. I also poured the fluid thru a rag and did not see anything suspicious.

My initial guess is that bearing #3 on the attached drawing is failing.

Greatly appreciate any suggestions and, if possible links to a repair procedure. I have read multiple postings on transmission problems but have not found anything that sounds
like my concern.




Last edited by Brewman; 11-09-2014 at 08:17 AM.
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post #2 of 3 Old 11-09-2014, 04:59 PM
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B- Sounds more like a CV joint problem. Are the boots intact?

Terry Phillips

Present: 575M 135171
Past: Dino 246 GT 02984, 365 GTB/4 14009, 308 GTS 25125

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post #3 of 3 Old 11-10-2014, 06:02 AM Thread Starter
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CV Joints Good

Originally Posted by tazandjan View Post
B- Sounds more like a CV joint problem. Are the boots intact?

That's what I was hoping. Both joints have been cleaned, inspected, greased, and installed with new boots. Problem still present.


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