1993 5x4.5 conversion

[nvr2low]

I searched for older posts but didn’t see any. I have a 1993 LX and looking to go from the 5x4.25 to 5x4.5 lug pattern. Does anyone know where I can find a complete parts list to do this?

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[Curt]

NVR2LOW, I fixed the same problem on my 97. I ordered a set of adapters. 4.25 to 4.50. I had to order the hub cyntric rings separately. They will set your wheels out 3/4" . I used medium loktite ( blue) on my stock lugs. Nothing on the adapter lugs.. I torqued them to 100 fp.Do not use an impact wrench!!! I checked them regularly for about 5 weeks. Have had then on for over 5 years and no problems.

 

[Sregord]

I searched for older posts but didn’t see any. I have a 1993 LX and looking to go from the 5x4.25 to 5x4.5 lug pattern. Does anyone know where I can find a complete parts list to do this?

I'm new ...and just saw this... if you haven't located this information...

https://www.*********/d2/members/dlf/Article.html

 

[Sregord]

here's the file I save for future reference

 

[Randal]

I have recently completed this change from 5x4.25 to 5x4.5 lug pattern on my 89 Super Coupe, I followed the instructions in the article by Douglas Fraleigh and have a couple updates to add.

On the front - I elected not to change the front spindles at this time and keep the stock calipers. To of this you will need to replace the rotors using 94 mustang rotors. The Mustang hubs have a larger diameter (Mustang: 71.1 mm vs Tbird: 64.5mm). The overall rotor diameter and thickness are the same but the hat hight is 3.5 mm higher (Mustang: 50 mm vs Tbird: 46.6 mm). I found that this 3.5mm made no difference with the stock Tbird calipers.

For the rear - Corbra hubs are extremely expense at $300 a piece. I purchased my hubs from Full Tilt Boogie Racing. They specialize in Mustang IRS and build their own 99-04 spindles that they sell as replacements with barings and retaining nut for $160 each. I used SuperCoupes Unlimited rear brake caliper relocation brackets vs building them as stated in the article. These brackets are very well made and come with detailed instructions. They do require a little grinding on the spindle to fit them.

One option it to re-drill you stock rear hubs to the 5x4.5 lug pattern. Kits are available on line for about $200

Tires & Wheels - I went with 93 Cobra wheels 17x8.5 and 255 45 17 tires. This tire wheel combo filled the wheel wells nicely and as a bonus the stock Thunderbird center caps fit the Cobra wheels give them a factory look. At a resent car show someone commented that back in the day they had they also had a super coupe like this - same wheels and even thing. I didn't bother to tell him that these wheels were not original.

I hope this helps.