4 lug to 5 lug conversion

[mustangfever79]

I have a 1991 Mustang LX convertible and it has four lugs and I want to convert into a five lug. Any help would be greatly appreciated. I have all the parts that are needed to convert into the five lug. I also have some 3.73 gears I would like to get installed since all rear has to come out as well. Any locals insight would be greatly appreciated.

[CRASH]

You can do all of that yourself, and you don't have to pull the rear end out to swap axles.

You are probably better off having someone that knows what they're doing to set up the gears, but even then the rear doesn't have to come out.

[White90GT]

Depends on what parts you got for the conversion. I believe the Lincoln Mark VIII front discs/rotors are the same as fox as far as the spindle and brake calipers go, so you can just pull off your front rotors and put those on instead.

The rear, I believe Ranger axles are the ones that can be direct swapped. You still have to open the rear and pull the PIN to get the c-clips out to get the axles out, then swap in your axles and drums.

For the gears, as mentioned if you don't know what you're doing with them, it's best to get someone who does to either do it or show you how. My first gear swap I used Ford Motorsport 3.73 gears and was able to direct swap all my factory shims over from the 2.73 onto the 3.73 gear, we're talking all the shims that were in place even on the pinion gear. Put it back together and everything was perfect and I ran it like that for nearly 10 years.