finding the gear ratio? - Ford Powerstroke Diesel Forum

 
LinkBack Thread Tools Display Modes
post #1 of 6 Old 06-10-2011, 05:34 AM Thread Starter
Powerstroke.org Rookie
 
chaosdanno's Avatar
 
Join Date: Jun 2009
Location: Mariposa
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
finding the gear ratio?

been checking on the gear ratio of my 1997 350 and in abit confused. read most of the threads on it so i know to check the tags on the rear end there is none. the tag on the door is not rite , previous owner changed. went out and spun the tire, this is wear i get confused. tire turns one time around the drivline turns two and a quarter. the is ratio? oh I'm running 35's and am at 65 at 2000RPM.

1997 F350 7.3 4X4
BANKS KIT
8" LIFT
running 35s
<><
4xFamily all saved by Grace
chaosdanno is offline  
post #2 of 6 Old 06-10-2011, 06:17 AM
Compression Ignition Addict
 
kylev90's Avatar
 
Join Date: Aug 2008
Location: Rootstown, OH
Posts: 1,400
Thanks: 3
Thanked 1 Time in 1 Post
Mentioned: 0 Post(s)
Quoted: 4 Post(s)
Feedback Score: 0 reviews
that cant be right....2 1/4 turns at the driveline for one turn at the wheel would make it like a 2.32?? not sure man, good luck

1997 CC SB. Stage 1s, 17*hpop, S&B CAI. 4" straight pipe, TW tunes, zf5 swap
kylev90 is offline  
post #3 of 6 Old 06-10-2011, 09:02 AM Thread Starter
Powerstroke.org Rookie
 
chaosdanno's Avatar
 
Join Date: Jun 2009
Location: Mariposa
Posts: 13
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
checked it several times. 2 1/4 turns. maybe i can get a vidio this weekend. and i can find out what is wrong? i need help.

1997 F350 7.3 4X4
BANKS KIT
8" LIFT
running 35s
<><
4xFamily all saved by Grace

Last edited by chaosdanno; 06-10-2011 at 09:58 AM.
chaosdanno is offline  
post #4 of 6 Old 09-12-2011, 02:23 PM
Powerstroke.org Fanatic
 
goodyFAB7.3's Avatar
 
Join Date: Aug 2011
Posts: 91
Thanks: 0
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 0 reviews
wouldnt the 35s change your rotation?
are you making the marks on the ground?

2000 F350 xlt 4x4 7.3, 152,000 close to stock for now

GlowShift 3in1, diamond eye 4" turbo back w/muffler,PHP 6 pos. on the way!!!

coming soon: intake...
goodyFAB7.3 is offline  
post #5 of 6 Old 09-12-2011, 02:24 PM
Shade tree mechanic


 
95dieselsmoke's Avatar
 
Join Date: Mar 2008
Location: Lake Tapps, Wa.
Posts: 8,298
Thanks: 2
Thanked 0 Times in 0 Posts
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
Feedback Score: 1 reviews
The 35s will obviously change the whole thing. Maybe try putting a stock size tire on and see what the difference is?

MATT

Now featuring a 6.4 fat bottum 6 speed
95 f250--238k and counting
RDS stage I's-TW live tuned-Dana 60 swap-9" lift/40x13.5x20 ProComps-ZF5 swap/short throw/South Bend CON OFE-Iron Bull front-AFE CAI-SD innercooler-Fab Tech traction bars-MBRP DP/6" black miters-Autometer boost/pyro

"If you dont have ambition and big dreams, you end up working hard for someone who does"
95dieselsmoke is offline  
post #6 of 6 Old 09-12-2011, 02:35 PM
information regurgitator

 
NYC F-350's Avatar
 
Join Date: Dec 2010
Location: Epping, NH
Posts: 6,347
Thanks: 37
Thanked 268 Times in 245 Posts
Mentioned: 12 Post(s)
Quoted: 49 Post(s)
Feedback Score: 0 reviews
The 35's would only change the amount of ground covered by one revolution of the axle since the outer circumference is bigger. 35's not have an effect on how many revolutions the axle makes in relation to the driveshaft.

The ring gear should have the ratio stamped on it, if you pull the diff cover off.
NYC F-350 is offline  
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