PerformanceTrucks.net Forums

Notices
GM Drivetrain & Suspension Chassis | Transmission| Driveshaft | Gears/Rear End/Differential | Traction Aids

THe 4.56's Are in

Thread Tools
 
Search this Thread
 
Old 08-22-2008, 09:57 PM
  #1  
dug
Banned
Thread Starter
iTrader: (10)
 
dug's Avatar
 
Join Date: Aug 2002
Location: Phoenix
Posts: 3,727
Likes: 0
Received 0 Likes on 0 Posts
Default THe 4.56's Are in
Still breaking in the gears but they make the truck feel lighter. Played with a newer Mustang GT convertible. It was close until the truck shifted into 2nd.
dug is offline  
Reply Like
Old 08-22-2008, 09:58 PM
  #2  
2nd fastest 5.3 ECSB
iTrader: (14)
 
trever1t's Avatar
 
Join Date: Oct 2005
Location: NorCal
Posts: 26,690
Likes: 0
Received 1 Like on 1 Post
Default
I bet! Congrats, break in sucks
trever1t is offline  
Reply Like
Old 08-22-2008, 10:00 PM
  #3  
dug
Banned
Thread Starter
iTrader: (10)
 
dug's Avatar
 
Join Date: Aug 2002
Location: Phoenix
Posts: 3,727
Likes: 0
Received 0 Likes on 0 Posts
Default
how long does that break in period last? Ive been driving for 30-45minutes then let it cool off. Should I do a long trip at highway speeds?
dug is offline  
Reply Like
Old 08-22-2008, 10:03 PM
  #4  
TECH Senior Member
iTrader: (45)
 
dirt track racer 81's Avatar
 
Join Date: Jun 2005
Location: Hennessey, Oklahoma
Posts: 9,439
Likes: 0
Received 11 Likes on 5 Posts
Default
my 4.56s came in the other day..now i just need a differential. what you turn down the highway? what did you have before?
dirt track racer 81 is offline  
Reply Like
Old 08-22-2008, 10:04 PM
  #5  
2nd fastest 5.3 ECSB
iTrader: (14)
 
trever1t's Avatar
 
Join Date: Oct 2005
Location: NorCal
Posts: 26,690
Likes: 0
Received 1 Like on 1 Post
Default
I did 5 heat cycles, 500 miles and changed gear oil.
trever1t is offline  
Reply Like
Old 08-22-2008, 10:12 PM
  #6  
dug
Banned
Thread Starter
iTrader: (10)
 
dug's Avatar
 
Join Date: Aug 2002
Location: Phoenix
Posts: 3,727
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by dirt track racer 81
my 4.56s came in the other day..now i just need a differential. what you turn down the highway? what did you have before?
I think its around 2200 for 65mph with 31.7" tall tires. The speedometer isnt calibrated yet so not completely sure. Doesnt feel excessive at all. Everything is real smooth but the exhaust is louder.
dug is offline  
Reply Like
Old 08-22-2008, 10:12 PM
  #7  
dug
Banned
Thread Starter
iTrader: (10)
 
dug's Avatar
 
Join Date: Aug 2002
Location: Phoenix
Posts: 3,727
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by trever1t
I did 5 heat cycles, 500 miles and changed gear oil.
wow, didnt know you have to change the oil.
dug is offline  
Reply Like

Trending Topics

Old 08-22-2008, 10:16 PM
  #8  
TECH Senior Member
iTrader: (45)
 
dirt track racer 81's Avatar
 
Join Date: Jun 2005
Location: Hennessey, Oklahoma
Posts: 9,439
Likes: 0
Received 11 Likes on 5 Posts
Default
yea you wanna change the oil it will look pretty bad. what gears did you have before
dirt track racer 81 is offline  
Reply Like
Old 08-22-2008, 10:17 PM
  #9  
dug
Banned
Thread Starter
iTrader: (10)
 
dug's Avatar
 
Join Date: Aug 2002
Location: Phoenix
Posts: 3,727
Likes: 0
Received 0 Likes on 0 Posts
Default
The difference in stroke between the 5.3 and 4.8 is almost identical between 4.56 and 4.10's.
dug is offline  
Reply Like
Old 08-22-2008, 10:19 PM
  #10  
dug
Banned
Thread Starter
iTrader: (10)
 
dug's Avatar
 
Join Date: Aug 2002
Location: Phoenix
Posts: 3,727
Likes: 0
Received 0 Likes on 0 Posts
Default
I had 3.73's before
dug is offline  
Reply Like



Advanced Search
Quick Reply: THe 4.56's Are in


Reply Closed Thread Share

All times are GMT -5. The time now is 08:06 PM.