Gear ratio change with 35" tires? HELP - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 01-03-2011, 07:04 PM
Premium Member

 

Join Date: Jan 2010
Location: Denver, CO
Posts: 96
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Gear ratio change with 35" tires? HELP

Can anyone tell me if I will need to swap out gears when I put 35s on my truck? I am guessing I will need to, in order to get stock drivability, but which gears do I need? (BTW the truck is listed in my sig and is a XLT with stock 17" wheels and tires).
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 01-03-2011, 07:12 PM
Compression Ignition Addict
 

Join Date: Sep 2009
Location: nordern mn
Posts: 177
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
when they come from the factory with 275/65-20's that equals 34.2''

so 35's arent much different. even if you have 3.55 gears you should be fine
Reply With Quote Quick reply to this message
  #3  
Old 01-03-2011, 08:30 PM
Premium Member

 

Join Date: Jan 2010
Location: Denver, CO
Posts: 96
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Quote:
Originally Posted by suban View Post
when they come from the factory with 275/65-20's that equals 34.2''

so 35's arent much different. even if you have 3.55 gears you should be fine
That is true but mine came from the factory with the 17 inch wheels and the 265/70/17s so I am thinking I have 3.55 gears right......
Reply With Quote Quick reply to this message
  #4  
Old 01-04-2011, 08:36 AM
Powerstroke.org Fanatic
 

Join Date: Mar 2010
Posts: 95
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
What is the build date on your truck? Job 1 Around March of 07 had 3:73's.. Think they went 3:55's on Job 2 to help with gas mileage. Someone else that knows hopefully can confirm.
Reply With Quote Quick reply to this message
  #5  
Old 01-04-2011, 08:49 AM
Premium Member

 

Join Date: Jan 2010
Location: Denver, CO
Posts: 96
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Quote:
Originally Posted by Blue Turd View Post
What is the build date on your truck? Job 1 Around March of 07 had 3:73's.. Think they went 3:55's on Job 2 to help with gas mileage. Someone else that knows hopefully can confirm.
I think there is a way to find out by looking at the label in your door jam....can anyone confirm?
Reply With Quote Quick reply to this message
  #6  
Old 01-04-2011, 09:24 AM
Compression Ignition Addict
 

Join Date: Sep 2009
Location: nordern mn
Posts: 177
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by Rosspbig View Post
I think there is a way to find out by looking at the label in your door jam....can anyone confirm?
look in drivers door and read the build date then report back
Reply With Quote Quick reply to this message
  #7  
Old 01-04-2011, 09:25 AM
Compression Ignition Addict
 

Join Date: Sep 2010
Location: Austin, TX
Posts: 572
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Subscribed out of curiosity. 35's go on today, but not planning to swap gears.
Reply With Quote Quick reply to this message
  #8  
Old 01-04-2011, 10:57 AM
Premium Member

 

Join Date: Jan 2010
Location: Denver, CO
Posts: 96
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 1 reviews
Quote:
Originally Posted by suban View Post
look in drivers door and read the build date then report back
Ok looks like the build date is 12/09. Does that mean I have 3.55s?
Reply With Quote Quick reply to this message
  #9  
Old 01-04-2011, 11:05 AM
Powerstroke.org Fanatic
 

Join Date: Mar 2010
Posts: 95
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Not 100% sure but think most trucks by end of 2008 had 3:55's. Lets see what the 2009 guys have to say.
Reply With Quote Quick reply to this message
  #10  
Old 01-04-2011, 11:09 AM
Compression Ignition Addict
 

Join Date: Mar 2009
Posts: 437
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I run 37s with stock 3.73 gears on my cclb 7.3L with no problems.
Reply With Quote Quick reply to this message
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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:

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
Display Modes

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



All times are GMT -8. The time now is 06:25 PM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors