There is a write up on these brake upgrade kits. They have also mentioned here

"These larger calipers are similar to what you would find under the front of a 1-ton Dodge van"

And the link to write up as below

http://www.fourwheeler.com/techartic...kit/index.html


All I need is what Brake Calipers these are and what is the
part # ??????
Make
Model
Year

And from where Can I purchase them.

 

How about trying Rock Auto.com. I don't know if they'll ship to you, but you'd at least get the correct part number.

 

Looking at the article they have adapters to make the bigger calipers fit, and it pushes them out to fit the bigger rotor if they are not going sell you the kit are you going to make these adapters because the dual piston calipers will not just fit in place of a single piston caliper.

If you go to autozone.com or rockauto.com and pick your vehicle and follow it to brakes you can find what you need, just use the 2001 1 ton van and should give you what you need

 

Looked at rockauto, used a 2001 Ram Van 3500 with a 5.9 and the OEM part number they had was #19141674 and #19141675
Looked at the picture though and they look nothing like what calipers they used.
If you look at the rear calipers for a truck they look the same as the ones their using in the article

 

Thanks a lot for posting man that really helps.
Here are few more pics on Dynatrac front Axles with their big brake upgrade kit










Also searched ebay and found the following items. I have been told from other source that Dynatrac are using TRW made and it's a 03-06 maybe later dodge 1500 caliper and rotor.

http://cgi.ebay.com/ebaymotors/00-01...Q5fAccessories

http://cgi.ebay.com/ebaymotors/A1-Ca...Q5fAccessories

 

i wanna lick those axles......... im in love!

 

Just a question though what is so special about those axles

 

clean n shiney n new