Can 4 lug axles be drilled for 5 lug?
Reply #8 –
You'll also need to change your differential, as our cars were all 28 spline...again, nothing that can't be overcame with a little $ or junkyarding. Explorers and later rangers had 31 spline diffs, most with trac loc and 3.55 gears...but then with a 31 spline rear, NO stock Mustang axle will work in YOUR car, only aftermarket axles. Ranger left sides will be too short, although 5 lug and (later years) 31 spline...
Confused yet? lol
The average joe probably shouldn't attempt it. But someone who has a drill press, and good welding skill could pull it off cheaply...and safely.
I wouldn't attempt, but someone who had the proper tools to get everything centered, properly welded, and drilled in 5, could.
Then again, Stang axles are cheap, but if you are hell bent on keeping drums as I was, you'd have to source the 10" drum backing plates, or else spend some $ on the disc brake stuff, master cylinder, brake booster, etc.
So, does it boil down to bottom dollar, or what style of brakes you plan to use afterward. If you're going to do this to say, a TC, keep in mind you'll also need to drill your rotor, as NO current Stang 5 lug rear rotor will work with TC's caliper setup, as the TC had vented, Stangs had solid. Cobras did have vented, as did Mark 7, but again, they also had different calipers, and the Cobra stuff will require a 17" wheel, and most likely and 18 incher after '96 or 97.
So if you've got access to a full-on automotive shop and the know-how to do it safely, then do it. It's been done, and will be again.
If you want to 5 lug on the cheap to a TC rear, find backing plates from an '86 up 10 inch drum car (they'll be smooth, a lot like the Ranger's 10", but a different hat depth, not much, but enough to be an issue) the '88 year Panther car drums...and...slap them on.
It works. I've got this setup on my Sport with a TC rear. You will also need 10 small flat washers, (I have the thickness wrote down here somewhere, I'll edit this when I find the measurements) to space the drum slightly off the backing plate.
This is it.