I need some, 3" axle tube, 2 1/2" spring. Very common.

But the center hole for the spring pin for some reason is top secret. Nobody shows it.

I need 1/2" center hole, who has bought these and where did you gettum ?

Hi Hemi , this topic comes up a lot . the 5/8 center hole spring pads are mopar P4120074 . the ones you want with the 1/2" center hole is mopar P5007857 . I think mancini racing has both as well as the other vendors . ronnie

Thanks much Ronnie.
Now comes the phone marathon.

Hi hemi , I agree . and whoever you try to order them from , make sure they are physically in stock . lot's of back orders and delays because of corona . and vendors saying you will have them in a week . ronnie

FWIW, Moroso spring perches are identical to the OEM Mopar Dana 60 passenger car pieces.

Doctor, are those pieces 1/2" hole or different ?

Moroso spring perches are made with a 1/2" center hole.

Summit Racing has a large selection of perches. Calvert Racing has boxed perches. I'm sure Doctor Diff can sell you perches.

Doctor, I tried to PM you about this but your box is full.

I weld in a 1/2” inside tube, no biggie. Stock ones are very easy to get off, cut into the corners a little then knock em off with a big hammer. I got a pair from my buddy that had the big hole, fixed them but have never used them

If the 5/8 P4120074 hole will work for you here are new mopar for $23 shipped.

https://www.ebay.com/itm/MOPAR-PERFORMANCE-3-AXLE-TUBE-SPRING-PERCH-BRACKETS-SET-OF-2-OEM-NEW-MOPAR/191653904278?epid=675729092&hash=item2c9f767f96:g:2mgAAOSwjBNc4vUy

https://www.ebay.com/itm/MOPAR-PERF...ETS-SET-OF-2-OEM-NEW-MOPAR/191653904278?

how's this ?