Notices
GMT 900 Trucks General Discussion 2007 - 2013 Trucks | General Discussion

broke driveline on Dyno

Thread Tools
 
Search this Thread
 
Old 02-27-2009, 03:12 PM
  #11  
TECH Regular
Thread Starter
 
BlueSS's Avatar
 
Join Date: Mar 2003
Location: Mission Tx
Posts: 426
Likes: 0
Received 0 Likes on 0 Posts
Default

i believe it was in 3rd gear. the mph were around 114 so i'm sure it was 3rd
Old 02-27-2009, 04:06 PM
  #12  
TECH Enthusiast
 
Formula96's Avatar
 
Join Date: Feb 2003
Location: Longview, TX
Posts: 694
Received 1 Like on 1 Post
Default

i couldv'e sworn i heard on here to dyno our trucks in second for this very reason.
Old 02-27-2009, 04:43 PM
  #13  
TECH Regular
Thread Starter
 
BlueSS's Avatar
 
Join Date: Mar 2003
Location: Mission Tx
Posts: 426
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by Formula96
i couldv'e sworn i heard on here to dyno our trucks in second for this very reason.
what can I say "ooops" lol
we're putting in a stronger one we'll see how that one holds up...
Old 02-27-2009, 05:05 PM
  #14  
TECH Apprentice
 
mikeith's Avatar
 
Join Date: Oct 2006
Location: lubbock, tx
Posts: 360
Likes: 0
Received 0 Likes on 0 Posts
Default

Damn maybe I should upgrade soon... I did a top end run a few weeks ago and the speedo was long past being pegged out at 120. Guess I got lucky
Old 02-27-2009, 05:15 PM
  #15  
Mod with training wheels
iTrader: (16)
 
smokeshow's Avatar
 
Join Date: Feb 2009
Location: Detroit
Posts: 7,740
Received 204 Likes on 139 Posts
Default

Sounds like the drive shaft might be a weak point in the NNBS trucks... I get a vibration so strong at 100mph that I'm afraid to go any faster. I assumed it was the wheels, but it could be the drive shaft... Hopefully not!
Old 02-27-2009, 05:21 PM
  #16  
TECH Regular
Thread Starter
 
BlueSS's Avatar
 
Join Date: Mar 2003
Location: Mission Tx
Posts: 426
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by anasasisxenophontis
Sounds like the drive shaft might be a weak point in the NNBS trucks... I get a vibration so strong at 100mph that I'm afraid to go any faster. I assumed it was the wheels, but it could be the drive shaft... Hopefully not!
If your truck is lowered I can almost guarantee you it's the drive shaft. Check the pinion angle and have it corrected and even then the stock drive shaft is not made to go over 100mph... It looks real pretty when it brakes though... lol
Old 02-27-2009, 05:26 PM
  #17  
Mod with training wheels
iTrader: (16)
 
smokeshow's Avatar
 
Join Date: Feb 2009
Location: Detroit
Posts: 7,740
Received 204 Likes on 139 Posts
Default

Originally Posted by BlueSS
If your truck is lowered I can almost guarantee you it's the drive shaft. Check the pinion angle and have it corrected and even then the stock drive shaft is not made to go over 100mph... It looks real pretty when it brakes though... lol
That's the weird part, it was vibrating before I put the drop shackles on.
Lets hope I never have to find out how pretty it looks...
Old 02-27-2009, 08:00 PM
  #18  
JB1
TECH Resident
iTrader: (4)
 
JB1's Avatar
 
Join Date: Oct 2005
Location: Houston, TX
Posts: 894
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by mikeith
Damn maybe I should upgrade soon... I did a top end run a few weeks ago and the speedo was long past being pegged out at 120. Guess I got lucky
Na...your cool....its not a NNBS thing...these guys have the aluminum d-shaft...they have been twisting off on dynos since 1999 GMT800
Old 02-27-2009, 10:05 PM
  #19  
TECH Enthusiast
 
Y2KLimited's Avatar
 
Join Date: Jan 2003
Location: Queens, NY
Posts: 589
Likes: 0
Received 0 Likes on 0 Posts
Default

um......mine didn't break....

was also researched for bout 45 minutes straight over 100 mph on open roads on a vette run when the vettes were out of commission....(yes the 95 mph governor is gone)..........according to the laptop while tuning it has seen 130-140 but that I haven't seen firsthand........but since the guys from the shop have been stopped in my old vette at 120 mph while tuning when it wouldn't act up on the dyno.......I believe them..

of course I have seen this happen with a 99 pickup on a dyno and it was close to stock as well.
Old 02-28-2009, 02:20 AM
  #20  
Launching!
 
YeLLow Fever's Avatar
 
Join Date: May 2005
Location: Land of No where
Posts: 259
Likes: 0
Received 0 Likes on 0 Posts
Default

Originally Posted by anasasisxenophontis
Sounds like the drive shaft might be a weak point in the NNBS trucks... I get a vibration so strong at 100mph that I'm afraid to go any faster. I assumed it was the wheels, but it could be the drive shaft... Hopefully not!

Wtf , a nnbs thing ?
and someone mentioned it happens when lowering , am i missing something or what


Quick Reply: broke driveline on Dyno



All times are GMT -5. The time now is 09:32 AM.