More Power and torque?
Senior User
Joined: May 2004
Posts: 191
Likes: 0
From: San Diego, CA
Did the 4.56 gears first, $1100 total for both diffs in 1999. Major towing power improvement and improved towing mileage. 10mpg towing heavy horse trailer (previously 7-8mpg), always 12-13mpg city, never been on a road trip without the horses. The cam and other mods ($5600 total rebuild top end) came later after the plug blew out. Those really upped the power (185 to 230rwhp) and the mileage stayed the same. Go figure.
Senior User
Joined: May 2004
Posts: 191
Likes: 0
From: San Diego, CA
Originally Posted by lovemy150's
WOW!! 4.56's now we're talking gears. Where did you get the gears? Did you install yourself or have a " professional " do the job?
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Tuned
Joined: Jan 2005
Posts: 305
Likes: 1
From: Delphos, OH
Originally Posted by pronstar
+1 for gears.
I think these trucks are largely under-geared from the factory. (In my case, 3.31 with the tow package!)
For towing, this is a great mod.
I run 4.10s with street tires (285-60R18).
I think these trucks are largely under-geared from the factory. (In my case, 3.31 with the tow package!)
For towing, this is a great mod.
I run 4.10s with street tires (285-60R18).
Elder User
Joined: Jan 2006
Posts: 629
Likes: 0
On my truck, MPG was about the same.
Driving enjoyment = way higher.
I can't recall, I think they are Yukon or Motive...but I could be wrong about the brand.
I had these guys install them:
http://www.diffworks.net/
Install cost was $300, I believe, and they also installed a LSD at the same time (I brought all the parts to them).
Driving enjoyment = way higher.
I can't recall, I think they are Yukon or Motive...but I could be wrong about the brand.
I had these guys install them:
http://www.diffworks.net/
Install cost was $300, I believe, and they also installed a LSD at the same time (I brought all the parts to them).
New User
Joined: Jun 2006
Posts: 5
Likes: 0
look for a bigger motor. I noticed very little difference with flowmasters, K&N, Hypertech, MAF, and Throttle body spacer. The hondas can still pass me on the on-ramp....The flowmasters sound good to them while thy drive by though....
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Elder User
Joined: Jan 2006
Posts: 629
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Originally Posted by Fasterhorses
The cam and other mods ($5600 total rebuild top end) came later after the plug blew out. Those really upped the power (185 to 230rwhp) and the mileage stayed the same. Go figure.
What cam are you running in your truck?
Senior User
Joined: May 2004
Posts: 191
Likes: 0
From: San Diego, CA
Originally Posted by pronstar
Hey Faster,
What cam are you running in your truck?
What cam are you running in your truck?
Schneider Racing Cams ph. 619-297-0227 If you order them the grind is "264-RH" and tell them the work order or reference number is "39082". That way you will get exactly the same cams I got for my 97 5.4L. It is a towing grind.
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