Notice: We request that you don't just set up a new account at this time if you are a previous user.
If you used to be one of our moderators, please feel free to reach out to Chris via the facebook Outerlimits4x4 group and he will get you set back up with access should he need you.
Recovery:If you cannot access your old email address and don't remember your password, please click here to log a change of email address so you can do a password reset.

diff ratios

Tech Talk for Cruiser owners.

Moderators: toaddog, Elmo, DUDELUX

Post Reply
Posts: 22
Joined: Fri Apr 20, 2012 8:33 pm

diff ratios

Post by TOJO 12-HT »

Hey
I have a HJ75 5speed manual (H55F)
Running 35s on factory diff ratios, that i belive are 4.11

Now i want to mainly fit 79series axle assemblys F&R, with 79series diffs 4.3 ratio. What final drive ratio would i get back to? 33s?
As atm its just a bit high geared
Posts: 3740
Joined: Sat May 26, 2007 5:04 pm
Location: Licking a window near you

Re: diff ratios

Post by 80's_delirious »

Sounds about right.

33s change final drive by about 5%
35s change final drive by about 10%, 4.3:1 diff ratios will bring it back to about a 5% change in final drive.
RN wrote:pussy is out, its the log for me... Thank you Jesus.
Posts: 22
Joined: Fri Apr 20, 2012 8:33 pm

Re: diff ratios

Post by TOJO 12-HT »

Sweet

Also i have air locker in my 4.11 diff, would the 4.3 ring n pinnion fit in my old diff center?
Posts: 3740
Joined: Sat May 26, 2007 5:04 pm
Location: Licking a window near you

Re: diff ratios

Post by 80's_delirious »

Nope, 105/79series centres are different, ring gears gave a different bolt pattern.
RN wrote:pussy is out, its the log for me... Thank you Jesus.
Posts: 1109
Joined: Mon Feb 12, 2007 8:48 pm
Location: Australia

Re: diff ratios

Post by hulsty »

Side gears are different, 79 series use 32 spline axles.
The Silver Bullet - BJ74
Where the actions at Ontrack 4wd Club
http://www.ontrack4wdclub.com/
[url]http://www.cams.com.au/[/url]
Posts: 7
Joined: Fri Sep 21, 2012 8:59 pm
Location: Perth

Re: diff ratios

Post by X-ron »

Here is a link for a diff ratio chart that might help out: http://www.4-wheeling-in-western-austra ... ratio.html" onclick="window.open(this.href);return false;

Cheer Ronny
Visit http://www.4-wheeling-in-western-australia.com/" onclick="window.open(this.href);return false; for 4WD infomation, track locations and different terrain driving tips.
Posts: 22
Joined: Fri Apr 20, 2012 8:33 pm

Re: diff ratios

Post by TOJO 12-HT »

ah ok so it might b quickest and easyest to jus fit 79 axles complete, and maybe do a 6stud hub conversion.
because im coin coil f&r anyway
Posts: 1109
Joined: Mon Feb 12, 2007 8:48 pm
Location: Australia

Re: diff ratios

Post by hulsty »

Cant easily do that either, just get 5 stud wheels.
The Silver Bullet - BJ74
Where the actions at Ontrack 4wd Club
http://www.ontrack4wdclub.com/
[url]http://www.cams.com.au/[/url]
Posts: 3740
Joined: Sat May 26, 2007 5:04 pm
Location: Licking a window near you

Re: diff ratios

Post by 80's_delirious »

hulsty wrote:Cant easily do that either, just get 5 stud wheels.
X2 there is no straight forward way to convert 5stud to 6stud.
RN wrote:pussy is out, its the log for me... Thank you Jesus.
Post Reply

Who is online

Users browsing this forum: No registered users and 28 guests