Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks
Sign in using an external account
Register Forgot Password?


1987 - 1996 F150 & Larger F-Series Trucks 1987 - 1996 Ford F-150, F-250, F-350 and larger pickups - including the 1997 heavy-duty F250/F350+ trucks

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 06-17-2010, 08:36 PM
So-Cal Sancho So-Cal Sancho is offline
Senior User
 
Join Date: Mar 2009
Posts: 134
So-Cal Sancho is new and has a neutral reputation at this point.
the best gear ratio 1996-f250/460

I know this has been beaten to death but with a lot of reading i came up with these numbers. Just want an opinion on what would be the best long term application for towing a 8000lb. toyhauler.

from what i found. It is 242 hp @ 4000, and 394 lbs-ft @ 2200 rpm for California. 7.5L mass air

stock tire size was-235/85-r16 which equals 31.7"
my tires are 285/75-r16 which equals 32.8"
so using rpm calculators with a E4OD final drive ratio of.71

this is what i came up with for stock tires.
65mph x 31.7" tires x .71 drive x 3.55 gears = 1736 RPM
65mph x 31.7" tires x .71 drive x 4.10 gears = 2005 RPM

and now my tires:
65mph x 32.8" tires x .71 drive x 3.55 gears = 1678 RPM
65mph x 32.8" tires x .71 drive x 4.10 gears = 1938 RPM
65mph x 32.8" tires x .71 drive x 4.56 gears = 2155 RPM

so with all this info what do you guys think ? i was gonna do 4:10 but now maybe 4.56 which seems closer to peak horsepower.
but not in overdrive at a 1 to 1 ratio the rpms look like

3.55 = 2363 rpm and at 4.10 = 2730 and at 4.56 = 3036.
this is all while towing a 8000 lb toyhauler. any Ideas?
__________________
WASSUUPPP!!!!!!
Reply With Quote
  #2  
Old 06-17-2010, 09:26 PM
poocher pup poocher pup is offline
Senior User
 
Join Date: Jun 2010
Posts: 421
poocher pup is starting off with a positive reputation.
if you can afford the gas go for it. but i'd just go get a diesel truck if you're going to tow all the time.
Reply With Quote
  #3  
Old 06-17-2010, 10:00 PM
Conanski's Avatar
Conanski Conanski is offline
Post Fiend
 
Join Date: Jun 2006
Location: Ottawa, Ontario
Posts: 20,418
Conanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud ofConanski has much to be proud of
General consensus on here is the 460 will consume a lot of fuel with 4.10 gears or better and when towing but you're not buying one of the biggest gasoline engines ever produced for fuel milage so that's probably not a big concern. I'd say you want 4.10 gears for sure.
__________________
Paul (Conan) O'Brien

1990 5.0HO AOD XLT X-Cab F150 3.55LS, 1994 3.0L 5-sp x-cab Ranger 3.45, 2004 3.0L 5-sp X-cab Ranger Edge 4.10, 2004 2.5L 5-spd Subaru Legacy
1996 Kawasaki ZX11D, 2004 Honda 599, 2008 Kawasaki KLR650
Reply With Quote
  #4  
Old 06-17-2010, 11:11 PM
capn kirk capn kirk is offline
Posting Guru
 
Join Date: Dec 2006
Posts: 1,106
capn kirk is gaining momentum as a positive member of FTE.
i wouldnt swap your until i tried pulling the trailer or one of similar weight, that said 4.10s do good up to 33" tires with a trailer under 10k lbs, my 3.73s had no problem with close to 10klb trailer when i had 33" tires
__________________
2011 F150 xlt ecoboost 4x4 screw 6.5bed added Firestone Ride-Rite airbags w/ hd compressor
Sold-1996 F-250 460 Super Cab 8' Bed 4x4 [/B]
3.73 limited slip frnt/rear, 35x12.50 BFG All-Terrain, 4" Skyjacker, 3" body lift, hedman headers 3" single-back turndown before rear axle, K&N Air Filter,rebuilt trans, deep trans pan, Warn manual hubs
Reply With Quote
  #5  
Old 06-18-2010, 05:44 AM
Slip ford man's Avatar
Slip ford man Slip ford man is offline
Posting Guru
 
Join Date: Dec 2009
Location: Calverton
Posts: 1,053
Slip ford man has much to be proud ofSlip ford man has much to be proud ofSlip ford man has much to be proud ofSlip ford man has much to be proud ofSlip ford man has much to be proud ofSlip ford man has much to be proud ofSlip ford man has much to be proud ofSlip ford man has much to be proud ofSlip ford man has much to be proud ofSlip ford man has much to be proud of
For that weight trailer, Ford recomended the 410. anything more would only tend to be a waste of fuel...I would'nt go for the 456
__________________
Hot Wrench Society advocate
----------------------------
I love all Ford's, even my scrap heap's I got here
1988 F-250 HD XLT 4x 460 engine C6
1992 F-150 XLT 4x 302 engine AODHey OP, be sure to up-date this thread when a cure is found, HELP the next guy out that's in the same boat as you.
Reply With Quote
  #6  
Old 06-18-2010, 09:51 AM
andym's Avatar
andym andym is offline
Post Fiend
 
Join Date: Mar 2002
Location: Sacramento, CA
Posts: 16,396
andym has a superb reputationandym has a superb reputationandym has a superb reputationandym has a superb reputationandym has a superb reputationandym has a superb reputationandym has a superb reputationandym has a superb reputationandym has a superb reputationandym has a superb reputationandym has a superb reputation
One other thing to worry about... with some transmissions the overdrive is actually weaker and towing in OD will lead to early failure. I know for a fact the ZF is one, but I don't know if the E4OD is or not. I would head over to the tranny/axle/t-case forum here and see if you can get Mark Kovalsky's attention. Ask him if there is a problem towing in overdrive with an E4OD.

But I agree with the 4.10 gear ratio.
__________________
Andy

"If you want to live in a country that manufactures things, you need to buy things that your country manufactures." - Mike Rowe
Reply With Quote
  #7  
Old 06-23-2010, 08:41 AM
CRABBO CRABBO is offline
Freshman User
 
Join Date: Oct 2007
Location: florida and north
Posts: 40
CRABBO is starting off with a positive reputation.
YOUR PROBLEM IS THAT THE 460 IS NOT EFFICIENT UNTIL ABOUT 2800 RPM,,I WOULD DEFINATELY NOT PULL IN O.D. ON AN E4OD PERIOD..
Reply With Quote
Old 06-23-2010, 08:41 AM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Older, Classic & Antique Trucks > 1987 - 1996 F150 & Larger F-Series Trucks

Tags
1996, 1997, 460, end, engines, f250, f250s, ford, fords, gear, gears, put, ratio, ratios, rear

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
What Rear End Gear Ratios were Available on the X? TucsonTripleB Excursion - King of SUVs 15 09-19-2010 03:11 PM
RPMs at 65mph with 4.56s DonnyG77 Ford Inline Six, 200, 250, 4.9L / 300 15 04-21-2009 03:59 AM
4.56's in a carbed 300 Dustin_86 Ford Inline Six, 200, 250, 4.9L / 300 16 05-04-2006 02:52 PM
Regear for Bronco - which to go with? BootHill 1978 - 1996 Big Bronco 4 01-13-2005 08:55 PM
numbers don't add up! Idaho Clutch, Transmission, Differential, Axle & Transfer Case 12 08-20-2002 02:28 PM



All times are GMT -5. The time now is 11:24 PM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup