85gt

does anyone have a 5bolt conversion for sale, or now what i can use to convert to 5 bolt thanks

CaptVirgilHilts

To convert the rear end to 5-lugs you need to replace the 4-lug axles and drums with 5-lug units. The axles that are needed will be either off of a Ranger, Bronco II or Aerostar van.
From an '83 to '92 4 cylinder or 3.0L V6 Ranger/Bronco II with a 7.5" rear end you will need two driver's side axles. Only the driver's side will work as the pumpkin on these rear ends is offset and the axles are different lengths (you need the longer of the two axles). It should measure 29-5/32".
From an Aerostar you will need two of the passenger side axles from an 86 to 97 model.
The axles are all the same so they can be mix-matched (i.e. - one driver's side axle from a Ranger and one passenger side axle from an Aerostar).
You can use the brake drums from either side of the above listed vehicles but make sure that they are 9" drums. The 4.0L Rangers came with an 8.8" rear end with 10" drums - these will not work.

Ponyryd

iTrader: (5)

^That, and you can use Lincoln Mark 7 rotors for the front, they are 5-lug but then you will be limited as to which wheels you can run since the hub and bearing cap stick out kinda far. You can also switch to SN95 spindles and brakes which will allow you to run pretty much any wheel you want. For rear you can also use a Lincoln Mark 7 rearend or a SN95 rearend, these rears will work but will push the wheels out slightly farther (1/2-3/4") than the Fox rearend would and you may need to trim the fender lips if you're running a wide tire.

krazpny

i have also heard that you can use ranger front rotors, just swap all the bearings and everything over and it should work. i read that in a muscle mustangs mag i believe