You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!
Ok thanks I can't remember where I got that from because I knew it wasn't a 9" but thought it was close. I can't help with anything then mine still has the 8".
No the 8.8 didn't come out tell the middle 80s.Think of a 8 inch as a baby 9 inch they look a like the diff cover is welded on a 8.8 is like the rest the diff cover comes off.I wouldn't do it the 8.8 is weaker then a 8 inch most say im crazy when i say but its true.Do you have a 8 inch now or a 7.5 and how much power are you making?
No the 8.8 didn't come out tell the middle 80s.Think of a 8 inch as a baby 9 inch they look a like the diff cover is welded on a 8.8 is like the rest the diff cover comes off.I wouldn't do it the 8.8 is weaker then a 8 inch most say im crazy when i say but its true.Do you have a 8 inch now or a 7.5 and how much power are you making?
I may have to mention the possibility of you being crazy. I don't mean to get argumentative here, and I hope I don't offend you, but... The 8.8 that they're using in the Mustang currently (which I assume is basically the same 8.8 that they started using on the Foxes) backs up the Motor in the Shelby SuperSnake package which drops something ridiculous like 725HP and somewhere in the 600lb/ft range. Sure the power doesn't come in quite as low as on the old bigger motors, but I doubt you'd get an 8" to survive very long behind it.
Oh, and if you pull one from a 95+ Explorer (and possibly other cars) you get 31 spline axles already in it (and disc brakes if you're into that). I'm just gonna guess that's probably a significant upgrade over the stock 8".
For what it is worth, the 8.8 has less pinion to ring tooth contact at any one time than a Ford 9". That along with their strength and ease of installation and customization has made the Ford 9" the go to rearend for racing. I doubt you will overload an 8.8 torque-wise unless you are planning a racecar, but they are less strong than a Ford 9".
__________________
"Yeah, were runnin a little bit hot tonight. I can barely see the road from the heat comin' off of it." Van Halen
Pimp,
Is it pretty simple: Oh hell yes! as long as you can weld, and use your head for more than just a place to put a ball cap.
Is it worth it: Depends. Nothing wrong with an 8" if you drive the car with respect. Yes the 8.8 is more efficient than an 8" or a 9" by 12% to 15%, but does that really matter for a car that only gets 10K miles per year? Yes it's stronger than an 8" and only marginally weaker than a 9" once 31 spline axles are installed. But if the car doesn't put down 1,000HP, does the extra expense of a 9" make a difference! Look at the cars in the Mustang mags that are standing on the rear bumper, and you'll see lots of 8.8s under those cars.
Fox width is perfect for the '67.
There are lots of threads on here by people who have actually done the swap. When you make up your mind that you want to do this swap, I'd recommend you PM some people who have actually done the swap. Preferably in a '67-'68 car.
There is a write up on the 8.8" install on the web site in the signature below.
This is in a '66, but the install is the same for a '67, except for the P-brake cables.
If you end up starting with a bare housing, I've only seen one other article, besides this page, that addresses how to handle that.
A google search on this swap will net you lots of great information as well.
If you decide to do this, don't get rid of your old axle until you've used it as a template to set up the pinion angle. It's really easy to set up the pinion angle by copying the stock rear end, with both rear ends up on a the same set of saw horses.
The 8.8 in a Shelby is nothing like a stock mustang its built up.But Scott makes a good point if its your weekend car or drove not much its like buying a 747 for free peanuts.
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. Ford® is a registered trademark of the Ford Motor Company
8.8 Rear End Swap into 67 Coupe
