Register free!

The Green Industry's Resource Center



Reply
 
Thread Tools   Display Modes
  #1  
Old 04-15-2001, 06:19 PM
Time 2 Mow
Guest
 
Posts: n/a
My 97 Ford Super Duty w/ the Diesel has a 5.11 gear ratio rear end and gets bad gas mileage. Do you guys think I can switch out the rear end farily easily?
Reply With Quote
  #2  
Old 04-15-2001, 06:44 PM
plowking35 plowking35 is offline
LawnSite Bronze Member
 
Join Date: Dec 1999
Location: S.E. CT
Posts: 1,687
Do you have the auto or 5 sp. If its an auto leave it alone, if its a 5 sp, I would think that another ring and pinon set should be available for under $ 1000.00 installed.
An entire rear end unit will be alot more than that.But remember the reason that gear is in the truck is to move the 15K the trucks gvw was desinged for.
Dino
__________________
I am not the biggest and I am not the best but I fall somewhere comfortably in between.
Reply With Quote
  #3  
Old 04-15-2001, 09:06 PM
GeoffDiamond GeoffDiamond is offline
LawnSite Bronze Member
 
Join Date: Dec 1999
Location: Maine
Posts: 1,652
The cheaper alternative might be a rear axel swap. For 500 bucks or so, I am sure you can find a 4.10 rear end out of a wrecked F 250 HD or F 350. I recomend leaving the truck as, Is, its a work truck not an escort the gas millage isn't going to be great.

Geoff
Reply With Quote
  #4  
Old 04-15-2001, 10:20 PM
John DiMartino John DiMartino is offline
LawnSite Silver Member
 
Join Date: Jan 2000
Location: Walden,NY
Posts: 2,555
I highly doubt the F250/350 has the same brakes as the 15K GVWR F450,although the ring and pinion are the same.Id leave it alone-a 15K GVWR truck isnt going to get good fuel economy no matter what-and i f you change them0you'll have no power when loaded to the max.
__________________
My Equipment Pictures
Reply With Quote
  #5  
Old 04-16-2001, 06:56 PM
99SDPSD 99SDPSD is offline
LawnSite Member
 
Join Date: Jan 2001
Location: Litchfield County, CT. U.S. A.
Posts: 69
87-97 F- Super Duty's came with a Dana model 80 rearend.
87-01 F - 250/350 SRW come with a Ford/Sterling 10 1/4 Rearend.
87-97 F - 350 DRW come with a Dana model 60 Rearend I think.
99-01 F - 350 DRW come with a Dana model 70 Rearend.
99-01 F - 450 DRW come with a Dana model 80 Rearend.
99-01 F - 550 DRW come with a Dana model 135 Rearend.
__________________
Ford SD PSD.,4X4,F550 dump & 03 DCTD 3500 both with Boss 9'2" Power V plows
Reply With Quote
  #6  
Old 04-18-2001, 12:06 PM
oldmankent oldmankent is offline
LawnSite Member
 
Join Date: Mar 2001
Location: Gloucester, MA/ Bar Hbr. ME
Posts: 39
Axle Ratio

You're best to leave it alone. 4.10 on that truck might be a little disappointing. I don't believe anything like a 4.88 is available either for that year.
Reply With Quote
  #7  
Old 04-22-2001, 01:11 AM
cajuncutter cajuncutter is offline
LawnSite Senior Member
 
Join Date: Mar 2001
Location: Shreveport,La
Posts: 626
I have never heard of 5.11 ration in these trucks however 4.10 is the common ratio..I do not know what you call bad gas milage but I am getting 14 on a bad day with a 93 crew cab 350 dually..4.10 ration behind a manula 5 speed..235000 miles on motor..I have a buddy that got a 95 250 ext/cab with power stroke with an auto trans..3.55 rear end..he does get horrible milage due to the fact that he is not running in the power band which is the most efficient for diesles...so what ever you do do not goto the 3.55 you will average 10.5 to the gal.
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not 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

Forum Jump





Powered by vBulletin® Version 3.8.6
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1998 - 2012, LawnSite.comô - Moose River Media
All times are GMT -4. The time now is 07:54 AM.

Page generated in 0.07727 seconds with 7 queries