1973+ front disc brake rotor question

[Locomotion]

Does anyone have a '73+ rotor laying around with easy access? I need an accurate outside diameter measurement of the outer wheel bearing "snout".

I'm looking at some cheap 15", 5 on 4.5" bolt pattern trailer wheels & tires to fit on OEM rotors to temporarily roll a car around on.

 

[65TerrorCuda]

11.75 Cordoba rotor: 2.787" at the end. Likely a bit smaller than that, my micrometer hit the wheel and that snout could be tapered.

 

[Professor Fate]

Chrysler uses a hub register diameter of 2.805" on the 5x4.5 bolt circle.

 

[72bluNblu]

The outer diameter of the snout can vary a bit too depending on the manufacturer of the rotor, some are better finished than others. I’ve measured a bunch, I’ve found them to typically be ~2.77” to ~2.81”.

 

[RustyRatRod]

The outer diameter of the snout can vary a bit too depending on the manufacturer of the rotor, some are better finished than others. I’ve measured a bunch, I’ve found them to typically be ~2.77” to ~2.81”.

What he said^^^^ and the reason is because the wheels are not hub centric, thay center on the wheel stuts and the bevels in the stud holes in the wheels, so the as long as the hub isn't too big, it'll send. lol

 

[65TerrorCuda]

What he said^^^^ and the reason is because the wheels are not hub centric, thay center on the wheel stuts and the bevels in the stud holes in the wheels, so the as long as the hub isn't too big, it'll send. lol

Is that the case for front drums too?

 

[RustyRatRod]

Is that the case for front drums too?

Yes sir, I believe it is.

 

[65TerrorCuda]

Yes sir, I believe it is.

Good stuff! TY

 

[Locomotion]

Cool! Thanks for all the info.

It looks like that will work if I use that option since the center hole in the rims with 205/75-15 tires is listed as 3.19". Might work on the rear axles as well plus there is 225/75-15 tire/rim combo that shows a 3.75" hole. (Walmart trailer tire/rim combos)

 

[JDMopar]

I have 2 of my old car trailer wheels/tires on the back of my 70 Duster to roll it around. It has a B body 8 3/4 in it for the same purpose...lol. They fit and work fine.