Rim specs

[Fern]

Are rims with 5 x 4.5 the same as 5 x 114.3 ?

[CarelianCuda]

Yes it's the same: 1 inch is 25.4 mm, so 4.5" x 25.4 = 114.3 mm

[HP2]

But check the backspace carefully. A rim advertised in metric specs may be a later model verison with excessive backspace that may not fit on a classic mopar. Many of these do fit okay, but not all.  check and double check to save yourself grief.

[Fern]

So how is the backspace measured?

[CarelianCuda]

About all of backspacing and offset: http://www.therangerstation.com/tech_library/wheel_fitment.html

[Fern]

About all of backspacing and offset: http://www.therangerstation.com/tech_library/wheel_fitment.html

Thats perfect
Thanks

[Super Blue 72]

Also to complicate things watch out for the center hub hole opening.  Mopars tend to use a larger hole, about 2.75" where many applications use a center hub hole of 2.5".

An example is if you wanted to use some Ford rims on our cars, ie late Mach 1 or Bullit style rims up to 2004.  The bolt pattern is good but the center hub hole is 2.5" (too small) and also the back space is like 5.5-6.0", too deep and our tires will rub the front suspension or leafsprings.

The hub hole issue is moreso the front with disc brake setups.