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Intro:

The first thing you need to do if you want to goto a 5 lug setup on your Mustang is decide which parts you are going to use. There are two popular ways of going to 5 lug along with some variations which I will talk about a little later. I will first give the parts required for each method, then give a small description of the pros and cons for the given method. There are more ways to goto 5 lug than I will give here; so at the end there are links to other resources.

In this how to I will only show you the SN95 methods of converting to 5 lug. My reasoning is that if you want to convert to 5 lug it is probably to run newer wheels, and hopefully you are looking for better braking as well. The old way of using Ford Ranger/Lincoln rotors retains the stock brakes and will not clear newer styled wheels such as Bullitts, Y2K Cobra Rs, etc. because of the dust cap and snout of the rotor.

Fore-notes:

Once you complete the 5 Lug swap your car will need to be aligned.

If you want rear disc brakes you must change to a matching brake booster and master cylinder.

1996 to 1998 Mustang Axles are 3/4 inch longer per side, resulting in 1.5 inch wider rear width.

1996 to 1998 Mustang Spindles are 8mm wider per side, resulting in 16mm wider front width.

Do not use 1999+ axles as they are 1.5 inches wider per side.

1986 and older Fox Mustangs require 1987 to 1993 Mustang struts to work with SN95 parts.

1986 and older Fox Mustangs require 1987 to 1993 Mustang brake hoses to work with SN95 parts.

Using SN95 Hub/Spindles with Ford Ranger Axles - Stock Track Width and Rear Drums:

Front Parts:

1994 or 1995 Mustang GT or V6 Hub and Spindle Assembly (x2)

1994 or 1995 Mustang GT or V6 Brake Calipers (x2), Caliper Bolts (x4), and Brake Pads

.330 Inch Spacer with a Inside Diameter of 5/8 inch (x2)

New Ball Joints (x2) Recommended

1987 to 1993 Mustang Struts (x2) (1986 or Older Mustangs Require This)

1987 to 1993 Mustang Brake Hoses (x2) (1986 or Older Mustangs Require This)

 

Rear Parts:

1983 to 1992 Ranger/Bronco II LEFT (driver) Side Axle (29-5/32") (x2) From a 4 Cylinder or 3.0L V-6 with the 7.5" Rear End; Do Not Use Axles from the 4.0L Ranger, Or 1986 to 1997 Aerostar RIGHT (passenger) side axle (29-5/32") (x2)

9 Inch Brake Drums for Either of the Above Vehicles (x2)

Gasket/RTV Sealant to Reassemble the Rear Differential Cover

Gear Lube

Comments:

The benefits of this method comes down to a balance between cost and performance. You should be ok with using the stock brake booster and master cylinder assembly. The larger front calipers and rotors offer better braking performance over stock Fox Body brakes. The front and rear widths will remain stock. The 1994 and 1995 front spindles have improved geometry for better turn in. Also, the 1994 and 1995 hub/spindle assembly is a sealed unit that requires less maintinance and no need to repack bearings when you put on new rotors.

 

Resources:

Thanks to these guys I successfully completed my 5 lug swap! Please check these links out as they are very comprehensive (although they are a bit confusing which is why I am writing this with the few things I felt they were not clear on).

The Complete 5 Lug Conversion Guide - http://mjbobbitt.home.comcast.net/mustang/5lug.html

StangNet 5 Lug Conversion Guide - http://www.stangnet.com/tech/lug.html

 

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