4.88 rear end - Ford Powerstroke Diesel Forum
 
LinkBack Thread Tools Display Modes
post #1 of 7 Old 03-24-2011, 05:45 AM Thread Starter
Powerstroke.org Rookie
 
Join Date: Mar 2011
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
4.88 rear end

Has anyone changed out the gears in the rear end. I picked up a 450 and soon found out the rear end has the 4.88 setup. Any ideas on where to start looking?
mobilewashpros is offline  
Sponsored Links
Advertisement
 
post #2 of 7 Old 03-24-2011, 07:45 AM
Compression Ignition Addict
 
Join Date: Dec 2007
Location: Taft, CA
Posts: 334
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
The cost on a gear swap might outweigh the benefits.
I have 4.88's, my brother had one with 4.30's. his truck got about 1 mpg better than mine all the time. So the cost benefit was not enough for me.
Better solution would be just delete the smog crap. It will be cheaper than the gear swap and also yield much better mileage than the gear swap.
The 450's were not built to cruise at 80. They were built to tow a lot at 60. To heavy of a truck to start with. If I drive over 65 the mileage drops quick.

Troy Simmons
08 F450 4x4
tbsimmons is offline  
post #3 of 7 Old 03-24-2011, 10:37 AM
Premium Member

 
BigGreen06's Avatar
 
Join Date: Aug 2006
Location: Cooperstown, NY
Posts: 2,442
Thanks: 22
Thanked 27 Times in 27 Posts
Mentioned: 2 Post(s)
Quoted: 72 Post(s)
Feedback Score: 0 reviews
X2
Delete the DPF and Cat and keep your gearing.

James.

Work Truck: 2010 F350 KR Oxford

Ford F250 CrewCab SWB 4X4 XLT. Sold
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

4" MBRP 409 SS Turbo-Back w/ Cat & Muff Delete
SCT Livewire w/ Looney Tunes, Courtesy of Vivian
AirDog 100 from Pure Flow Industries
Accufab Elbow
AFE Stage II W/ PG7 Sold!
Revtek 2.5" Level Kit
Nitto TG From Discount Tire
Smkd LED 3rd Brake & Smkd Mirror Lenses From Stealth Auto
LineX in the Bed
HID Highs/Lows 6000K.
Front & Rear Strobes & Front Dual Talon LED Dash Light, All Whelen;
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BigGreen06 is online now  
post #4 of 7 Old 03-24-2011, 12:01 PM
Compression Ignition Addict
 
Join Date: Dec 2007
Location: Taft, CA
Posts: 334
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
Forgot to add.
4.88's really shine when towing heavy in the mountains. My fiver is in the 18000 range. My brothers is in the 15500 range. I could out pull him in the mountains. Long steep grades, he ran off and left me though. I think that was the extra 2500+ pounds and not the gearing.

Troy Simmons
08 F450 4x4
tbsimmons is offline  
post #5 of 7 Old 03-24-2011, 06:44 PM
Powerstroke.org Rookie
 
Join Date: Mar 2011
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
i have the sam eissue. i talked to randys ring and pinion. they have the 4:10 for the 450 with everything its running around 1250 if you do your own labor.
iamtiltproof is offline  
post #6 of 7 Old 03-24-2011, 11:38 PM
Viking Heavy Diesel

 
Ryan Rønning's Avatar
 
Join Date: Nov 2007
Location: Wasilla, AK
Posts: 20,735
Thanks: 10
Thanked 10 Times in 10 Posts
Mentioned: 0 Post(s)
Quoted: 6 Post(s)
Feedback Score: 1 reviews
$1250 is not that bad, combine that with smog deleting and it would be a huge improvement.

Project Frankenstein



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
1997 Ford F-350, Dually conversion, Cobra 29 LX CB, 12000 watt converter, All LED lights, TW tunes, 4" DP, Napa Intake, coolant filter, 140cc Injectors and lots of running lights.

Quote:
Originally Posted by XPLOSIV View Post
Thanks. I'll give er a good wackin in the morning.
Ryan Rønning is offline  
post #7 of 7 Old 03-25-2011, 07:56 AM
Compression Ignition Addict
 
Join Date: Dec 2007
Location: Taft, CA
Posts: 334
Thanks: 0
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
I would hate 4.10's in this truck. I had 4.56's with 35's in my 6.0. If you dont tow then yes 4.10's will be fine. If you do and tow heavy you will hate them. Truck will never be able to stay in OD as much. That is why I love 4.88's. Truck stays in OD a lot with the TC locked. Tires are too tall, truck is too heavy, etc. If you want mileage, dont drive the 450 everyday. If you cant keep the TC locked in the tranny temp will go up also.
1200 for gears is not too bad. If you have never installed gears, I would not attempt on this truck with a 3rd member.

Troy Simmons
08 F450 4x4
tbsimmons is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in









Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome