Drivetrain Clutch, Torque Converter, Transmission, Driveline, Axles, Rear Ends

checkin gear ratio

Thread Tools
 
Search this Thread
 
Old Sep 8, 2007 | 01:06 PM
  #1  
95LT1conv's Avatar
Thread Starter
Registered User
 
Joined: Mar 2006
Posts: 916
From: putnam, Ct
checkin gear ratio

I was trying to check the ratio of my gears today to actually verify that the guy I bought the car from had 4.10's installed. Rotated the tire 1 full turn and got 4.25 turns on the driveshaft. Sound right? tire size, if it matters, is 255/50/16.
Old Sep 8, 2007 | 08:13 PM
  #2  
95LT1conv's Avatar
Thread Starter
Registered User
 
Joined: Mar 2006
Posts: 916
From: putnam, Ct
anyone?
Old Sep 9, 2007 | 06:53 AM
  #3  
rskrause's Avatar
Moderator
 
Joined: Dec 1969
Posts: 10,745
From: Buffalo, New York
Well, if they were 4.10's you would have seen 4.1 turns.

Rich
Old Sep 9, 2007 | 05:58 PM
  #4  
Injuneer's Avatar
Administrator
 
Joined: Nov 1998
Posts: 71,115
From: Hell was full so they sent me to NJ
He's within 3-4%... not bad considering the method used. Next option is to pull the cover off and count the teeth.
Old Sep 9, 2007 | 10:11 PM
  #5  
95LT1conv's Avatar
Thread Starter
Registered User
 
Joined: Mar 2006
Posts: 916
From: putnam, Ct
Thanks guys. I was just hoping NOT to get 3 or so turns of the DS. At least I know something was installed like I was told.
Old Sep 11, 2007 | 01:38 AM
  #6  
Bayer-Z28's Avatar
Registered User
 
Joined: Jan 2005
Posts: 2,592
From: N Falmouth MA
A trick I learned.. .It'll give you a rough guestamite.. provided you have stock diameter tires too.

do 80 in 4th gear.. then look at your tach, whatever the reading is is your rear ratio..
(a rough estimate.)

Last edited by Bayer-Z28; Sep 11, 2007 at 01:44 AM.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
HarleyZ28
Cars For Sale
1
Oct 5, 2015 06:23 AM
anmar A
Drivetrain
4
May 2, 2015 06:59 PM
thenewkid
LT1 Based Engine Tech
4
Apr 12, 2015 07:42 PM
chevroletfreak
LT1 Based Engine Tech
202
Jul 4, 2005 05:00 PM




All times are GMT -5. The time now is 11:12 PM.