Quickperformance. Com 9 inch - Ford Mustang Forum
LinkBack Thread Tools
post #1 of 2 (permalink) Old 1 Week Ago Thread Starter
jwthompson200's Avatar
Joined: Feb 2015
Location: Duchesne
Posts: 104
Quickperformance. Com 9 inch

I was wondering if anybody has any reviews of the 9 inch housing from quickperformance. Com. Also what size of 31 spline axel shafts goes into a 9 inch for a 1968 mustang.

Sent from my SM-G950U using Tapatalk

jwthompson200 is offline  
Sponsored Links
post #2 of 2 (permalink) Old 1 Day Ago
GT Member
Classic Member
5.0L Member
Grimbrand's Avatar
Joined: Nov 2016
Location: Sedgwick
Posts: 2,179
Send a message via Skype™ to Grimbrand
You have to run axles set up for your particular ring and pinion set. It's not just the number of splines, but the size of the axles that matters, as higher spline counts are physically larger. Your bearings need to be the right size as well. So bottom line? Either get the factory replacements for your factory parts, or else get a matching set from one end to the other, so it all works. To do that, you need to deal with the manufacturer and find out the specs.

To keep things simple, your best bet (with a factory axle) would be calling a reputable manufacturer like Strange and finding out what they recommend for your intended use, type of tires, and horsepower level. Any 9" is probably overkill unless you're running slicks with some serious torque. For street driven cars with a small block, 8" rear ends are often better, due to less parasitic power loss and lighter weight. Even if you soup it up pretty good, usually the extra power gets released in the form of tire smoke long before parts start breaking.

I smile a lot. It makes people wonder what I'm up to...
Grimbrand is online now  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Ford Mustang 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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

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 Off
Pingbacks are Off
Refbacks are On

For the best viewing experience please update your browser to Google Chrome

Search Engine Friendly URLs by vBSEO 3.6.1