66 mustang. 8 inch no posi trac - Ford Muscle Forums : Ford Muscle Cars Tech Forum
FordMuscleForums.com is the premier Ford Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools
Old 02-06-2012, 10:22 AM   #1 (permalink)
Registered User
 
Join Date: Jun 2011
Posts: 40
66 mustang. 8 inch no posi trac

I have a 66 mustang that i recently built a 351 stroker for. After putting the engine in and breaking her, I hit the gas, and well... All i got was alot of one tire burning off and smoke everywhere. A posi trac unit for the 8 inch is very $$$$$$$$. I can't find an orignal 9 inch rearend for it. I heard an 8.8 was frustrating and not worth it. I am just unsure what to do. any ideas?
Bradley66 is offline   Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Old 02-06-2012, 02:29 PM   #2 (permalink)
Registered User
 
Join Date: Mar 2011
Posts: 512
Re: 66 mustang. 8 inch no posi trac

Quote:
Originally Posted by Bradley66 View Post
I have a 66 mustang that i recently built a 351 stroker for. After putting the engine in and breaking her, I hit the gas, and well... All i got was alot of one tire burning off and smoke everywhere. A posi trac unit for the 8 inch is very $$$$$$$$. I can't find an orignal 9 inch rearend for it. I heard an 8.8 was frustrating and not worth it. I am just unsure what to do. any ideas?
You can find a 67-70 Mustang /Cougar rearend housing and have it narrowed 1" on each side to fit your 66. in my area it runs around $100-$150 to narrow it. You can then use your stock 28spline axles and your brakes on it. Or buy a rear housing from Currie made to fit your car. you can also buy 31spline axles if you get a 31 spline third member. in my area good used Trac-Locs (Posi) Are in the $300-$500 range. I would stay with the factory style small bearing housing. You will need the u-bolts and shock plates from a 67-70 to use on your 66. Very easy to do this
cmefly is offline   Reply With Quote Quick reply to this message
Old 02-06-2012, 03:39 PM   #3 (permalink)
Registered User
 
Join Date: Jan 2008
Location: Seattle, WA area
Posts: 8,711
Re: 66 mustang. 8 inch no posi trac

If you will only be running standard street tires (no slicks), then you could use the 8" with a Lock-Right insert. There's one on Fleabay right now for under $300 (I don't know the seller) and you can do the installation yourself in your driveway. Otherwise you're looking at the same issue everyone else is. If the 8.8" is acceptable, search these forums for how one is used by only shortening one side and using two stock short axles.

David
__________________
-=≡ If it was easy everyone would do it ≡=-
[size=1]HotShotsJava.com Hot Shots Java Coffeehouse, Poulsbo ,WA fair trade and 100% organic. Voted best espresso and coffee![/size]
PSIG is online now   Reply With Quote Quick reply to this message
Old 02-06-2012, 04:24 PM   #4 (permalink)
Subscriber
 
Join Date: Jan 2010
Location: Austin Tx
Posts: 1,242
Re: 66 mustang. 8 inch no posi trac

Just drop in a new 4 pinion t lock for about $325. Will work great on the street.
__________________

1965 Mustang Fastback 331, T5, 9" 3.50
1967 Mustang Fastback 331, T5, 8" 3.80
1967 Mustang Fastback A code GT 350
1969 Mach 1 428
arnoldtx is offline   Reply With Quote Quick reply to this message
Old 05-03-2012, 11:15 PM   #5 (permalink)
Registered User
 
Join Date: Dec 2007
Location: Lincoln City Oregon
Posts: 51
Re: 66 mustang. 8 inch no posi trac

I have an 8 inch carrier with 3.88-1 gears and a spool for sale. $500.00 bucks aught to cover it. It's got a nodular housing too! Not as bad for the street as people think.
cockroachdave is offline   Reply With Quote Quick reply to this message
Old 05-03-2012, 11:59 PM   #6 (permalink)
Registered User
 
Join Date: Feb 2003
Posts: 1,203
Re: 66 mustang. 8 inch no posi trac

IMO you should move to the 9". If your patient and want to save a few bucks, keep your eyes open in your local craigs list for a Granada/Versailles or 57 big Ford housing.

Trac-loc's are also easy to find (I just sold one that I had rebuilt with 4.11 etc for way less than I spent on it). You can reuse your axles unless you plan to use slicks.
__________________
530 HP N/A 408W, G-Force 5spd
10.x through the mufflers
slow-poke is offline   Reply With Quote Quick reply to this message
Old 05-04-2012, 02:12 AM   #7 (permalink)
Tech Contributor Gold
 
Join Date: Dec 2004
Location: Amish Wonderland Of Central PA
Posts: 4,437
Garage
Re: 66 mustang. 8 inch no posi trac

The 57-59 big Ford works well and as mentioned above, you can reuse your 8" axles and brakes. I did it and it was very easy. Sometimes they come with decent gears. I later updated the carrier and axles to Mustang 31 spline stuff too.
__________________
Dennis

My little 65' Stang street car:



Dart 428W NA, 4 Spd, 4:33, on pump gas pushing 3550lbs.

10.553@127.81 with a 1.466 60'
dennis111 is offline   Reply With Quote Quick reply to this message
Old 05-04-2012, 03:59 AM   #8 (permalink)
Registered User
 
Join Date: Apr 2001
Location: Central West Virginia
Posts: 7,013
Re: 66 mustang. 8 inch no posi trac

The Lincoln Versailles unit has those HEAVY, problem prone factory disk brakes. Parts are very expensive. You should avoid those. Standard Granada rears are 8".

The 57-59 Ford housings are 9". However, the axles that come in them are extremely weak. Good thing, is you can use your 8" mustang axles, and the mustang brakes bolt up to those housings as well. These housings are very lightweight. The mounts where the springs mount NEED to be boxed or they WILL bend and roll over. They've also got a drain plug in the bottom, which is handy. I've bent one of them in my racing, and eventually replaced it with a Currie unit.

I'd also make the effort to price aftermarket housings. (Currie, Strange, Moser, etc) Mine was only a little over $300... but that's been a while. With good aftermarket 31 spline aftermarket axles... you're looking at around $1000 shipped. (housing and axles only)

Good Luck!
__________________

66 Mustang, Toploader 4-speed
Pump Gas 306, 10.134@134.71
http://www.mustangworks.com/cgi-bin/moi-display.cgi?220
n2omike is offline   Reply With Quote Quick reply to this message
Old 05-04-2012, 09:01 PM   #9 (permalink)
Subscriber
 
Join Date: Jan 2001
Location: Texas
Posts: 2,216
Re: 66 mustang. 8 inch no posi trac

With a traction lock you will get 2 tires burning a lot, LOL.
__________________
1965 289 mustang fastback
Hottarod is offline   Reply With Quote Quick reply to this message
Old 05-05-2012, 07:59 AM   #10 (permalink)
Tech Contributor Gold
 
Join Date: Dec 2009
Location: Carson City, Nv
Posts: 453
Re: 66 mustang. 8 inch no posi trac

Send it to Currie or Moser and have them put one in for you with the gears you want and stronger axles built for it. The 8"will handle more power then you think.
That way, everything looks stock.
Do it right or get ready to do it again!
The 66 Stang my dad built has the 8" posi with 3.55 gears, Currie axles and a 67 carrier, more ribs to it. Works fine behind the 331 stroker.
__________________
Getting her done after being FUBARed
rickyracer is offline   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 Muscle Forums : Ford Muscle Cars Tech 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.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
3.55 gears, Axles, and Posi Trac for Ford 9" Spali32 Drivetrain 5 04-02-2010 05:12 PM
8 inch posi hepcat69 Mustang Pages (1965-1973) 0 04-10-2008 05:09 PM
04 sport trac with 20 inch wheels!!!! XolieX The Garage 17 03-04-2005 12:51 PM
How can I tell an 8 inch trac loc posi from an open carrier? 65cyclone All Ford Techboard 2 06-24-2003 12:56 PM
8 or 9 inch trac-loc layout stangclassic66 All Ford Techboard 1 10-23-2002 10:56 AM


All times are GMT -7. The time now is 08:19 AM.



Powered by vBulletin® Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Friendly URLs by vBSEO 3.6.0
 

Garage Plus vBulletin Plugins by Drive Thru Online, Inc.