2010 SSTC f35 mainshaft nut backed off - Cobalt SS Network

Go Back  Cobalt SS Network > Specific Technical Discussion > Drivetrain
2010 SSTC f35 mainshaft nut backed off >

2010 SSTC f35 mainshaft nut backed off

Drivetrain Transmission, LSD, Clutch, Driveline, Axles...

2010 SSTC f35 mainshaft nut backed off

Old 06-14-2018, 01:36 PM
  #1  
New Member
Thread Starter
 
Join Date: 02-27-10
Location: Plano, IL
Posts: 85
Thanks: 0
Thanked 0 Times in 0 Posts
2010 SSTC f35 mainshaft nut backed off

Has anyone ever experienced this. 2012 the transmission was replaced under warranty. Feb 12 2018 and the car locked in Rev while parking. it had slowly been grinding gear around left turns under acceleration slowly over time. found the mainshaft nut sitting on the shaft, the first thread rounded on the shaft and the nut. Transmission has been rebuilt by performance autowerks
after a transmission specific shop completely jacked it up the first time .

Just wondering if it has been seen.

Last edited by cobaltz06; 06-14-2018 at 03:53 PM.
cobaltz06 is offline  
Old 06-14-2018, 02:23 PM
  #2  
Senior Member
iTrader: (1)
 
Join Date: 10-27-07
Location: Abbotsford BC, Canada
Posts: 5,320
Thanked 153 Times in 137 Posts
i havent dug into an f35 yet, so im not real familiar with it, but looking at pictures it looks like the nut should be staked in place. if it was not properly staked in place, that could cause it to come loose. also, there is a crush sleeve that needs to be replaced on rebuild, if that was not replaced during rebuild there isnt proper torque on the nut to achieve the correct preload on the bearing, and over time it will back off. or, its just a build error and it was never set up correctly.

i just finished rebuilding a toyota/getrag v160 (mk 4 supra twin turbo), when i got the thing it had previously been rebuilt. they have a nut on the countershaft that retains 5th and 6th gear, it was floating loose with the retainer plate bolted on over top of it. its clear the 2 gears did not get pressed on all the way before the nut was tightened, and during use those gears seated into place, causing the nut to be loose.
Sharkey is offline  
Old 06-14-2018, 03:48 PM
  #3  
New Member
Thread Starter
 
Join Date: 02-27-10
Location: Plano, IL
Posts: 85
Thanks: 0
Thanked 0 Times in 0 Posts
It was punched in place and everything thats what I couldn't believe. really sketchy for a GM reman trans. the threads on the nut seem to have some locking characteristic to them.
cobaltz06 is offline  
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
katahdin_lubricants
Drivetrain
13
08-28-2015 04:23 AM
BlueDemon
Wanted - What to buy - All categories
3
04-10-2014 12:45 PM
distillion
The Lounge
46
01-19-2006 07:46 PM
Tofu
The Lounge
18
12-24-2005 05:42 PM


Thread Tools
Search this Thread
Quick Reply: 2010 SSTC f35 mainshaft nut backed off


Contact Us Archive Advertising Cookie Policy Privacy Statement Terms of Service

© 2018 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.