Help please

Reply Subscribe

Thread Tools

Search this Thread

Jan 26, 2011 | 07:19 PM

grayghost1956

Thread Starter

New User

Joined: Aug 2010

Posts: 1

Likes: 0

Help please

I have a 1995 Ford F150 with a 302 V-8 automatic with overdrive transmission I would like to change my rear end gears to improve my gas mileage does anybody have any suggestions. It is 2WD and has stock 15' on front and 31's on back. I do not know what gears are in it now but I know it is getting about 300 miles out before it runs both fuel tanks dry. I had another F150 that was an extended cab that was getting about 450 miles before it would run out both trucks was 95 F150 with stock tires and 302 engines with automatic overdrive transmissions only difference is one was one extended cab and one is standard cab long bed.

Last edited by grayghost1956; Jan 27, 2011 at 09:49 AM. Reason: answering some questions

Jan 26, 2011 | 07:35 PM

Bob Gervais

Posting Guru

Joined: Jan 2004

Posts: 2,403

Likes: 4

From: Charlestown, RI

Important thing to remember is that you want to stay in the engine's powerband when doing this.

What size tires are you running?

Jan 26, 2011 | 10:12 PM

rla2005

Fleet Owner

Joined: Oct 2005

Posts: 20,786

Likes: 1,751

From: Kentucky

And what gears do you have now?

Jan 26, 2011 | 11:18 PM

Encho

The Southernmost Mod

Joined: Dec 2004

Posts: 6,902

Likes: 20

From: Caracas, Venezuela

Also, no matter if it's a 2wd, the gears front and rear should be matched.

Jan 26, 2011 | 11:33 PM

fdude64

Posting Guru

Joined: Feb 2008

Posts: 2,184

Likes: 0

From: dayton ohio

2 wd front gears? where?

Jan 26, 2011 | 11:57 PM

CJM8515

Posting Guru

Joined: Jun 2010

Posts: 1,008

Likes: 2

From: Freehold

A 2wd doesnt have any gears up front lol...

Jan 27, 2011 | 12:39 AM

Encho

The Southernmost Mod

Joined: Dec 2004

Posts: 6,902

Likes: 20

From: Caracas, Venezuela

What? one can't say a joke without getting spanked anymore? geeez... lol...

Top 10 Most Expensive Ford Trucks Ever Sold on Bring a Trailer

Joe Kucinski

2027 Ford Super Duty Buyer's Guide (Every Model, Engine, & Package)

Brett Foote

Top 10 Ford Truck Tragedies

Joe Kucinski

AEV FXL Super Duty - the Super Duty Raptor Ford Doesn't Make

Brett Foote

Lobo Vs Lobo: Proof the F-150 Lobo Should Be Even Lower!

Michael S. Palmer

Ford's 2001 Explorer Sportsman Concept Looks For a New Home

Verdad Gallardo

10 Best Ford Truck Engines We Miss the Most!

Joe Kucinski

2026 Shelby F-150 Off-Road: Better Than a Raptor R?

Brett Foote

2027 Super Duty Carhartt Package First Look: 12 Things You NEED to Know!

Michael S. Palmer

10 Most Surprising 2026 Ford Truck Features!

Joe Kucinski

Jan 27, 2011 | 06:25 AM

fdude64

Posting Guru

Joined: Feb 2008

Posts: 2,184

Likes: 0

From: dayton ohio

lmfao just had to say it lol

Jan 27, 2011 | 06:34 AM

#10

92nite351

Elder User

Joined: Dec 2010

Posts: 501

Likes: 0

From: Morrill, Me

3:73 is the magic gear for these trucks as long as ur tires are 31's or smaller. its just my opinion however. alot of guys on here would say 4:10 but i think thats too high 4 31's and less..

Jan 27, 2011 | 06:52 AM

#11

fdude64

Posting Guru

Joined: Feb 2008

Posts: 2,184

Likes: 0

From: dayton ohio

here is a craigslist ad i found
I have a older but never used offset dana 60. It has a 7.17 gear ratio. I bought to make a front axle and sold truck before i had the chance to build it

Jan 27, 2011 | 06:53 AM

#12

fdude64

Posting Guru

Joined: Feb 2008

Posts: 2,184

Likes: 0

From: dayton ohio

is that a crazy ratio or what?

Jan 27, 2011 | 07:17 AM

#13

dave47111

Senior User

Joined: Jan 2011

Posts: 131

Likes: 0

From: Charlestown,IN

Quote:

Originally Posted by fdude64

is that a crazy ratio or what?

Thats for when you pull the wheels off you John Deere to use on your truck!

Jan 27, 2011 | 07:19 AM

#14

fdude64

Posting Guru

Joined: Feb 2008

Posts: 2,184

Likes: 0

From: dayton ohio

i was thinkin the 66" rice tires off the combine lmfao

Jan 27, 2011 | 09:09 AM

#15

Bob Gervais

Posting Guru

Joined: Jan 2004

Posts: 2,403

Likes: 4

From: Charlestown, RI

Quote:

Originally Posted by fdude64

here is a craigslist ad i found
I have a older but never used offset dana 60. It has a 7.17 gear ratio. I bought to make a front axle and sold truck before i had the chance to build it

Chances are it's a 3.55 and someone doesn't know how to figure out gear ratios!

Gotta love Craigslist...