They are not the same. Well maybe. The fronts are 15". I don't think any other Rams have those. The rears were said to be from the heavy duty pickup. What I don't know is the definition of HD. Is that 2500,3500 or is there a 1500HD? Either way that makes the rears non-SRT specific.
The front calipers are from the HD Ram trucks with minor tweaks, and the rear calipers are from the front of the normal LD rams (note the twin pistons versus singles on regular LD Rams). The front knuckles and rotors are unique to the srt/10.
"1500Front: 13.2 x 1.1 (336 x 28) vented disc with 2.13 (54) two-piston pin-slider caliper. ABS optional. 292 sq. in. (1884 sq cm) swept area - largest in the class according to Chrysler.
Rear: 13.8 x 0.87 (352 x 22) disc with 2.13 (54) single-piston pin-slider caliper and ABS. 274 sq. in. (1768 sq cm) - largest in the class according to Chrysler.
2500 and 3500Front: 13.9 x 1.26 vented disc with 2.20 two-piston sliding caliper and ABS; swept Area: 313.2 sq. in. (2021 sq cm)
Rear: 13.9 x 1.18 (352.5 x 30) disc with 1.77 (45) two-piston sliding caliper and ABS. Swept Area: 309.6 sq. in. (1997 sq cm) 309.6 sq. in. (1997 sq cm)
Power Assist Type: Tandem diaphragm vacuum with Single Rear Wheels - gasoline engines."
This is off the spec page for regular Rams on Allpar.
I think you have to check the thickness of the rotor to tell if it's the front or the back rotors off a 2500. They are all listed as 2 piston calipers on the 2500 as well. Of course the 2500 uses a 8 lug pattern so they would still be part specific if they were drilled as a 5 lug.
Allpar says about the SRT-10:
"Big brakes, another Dodge Ram staple, are also modified for the 2004 Ram SRT-10. The standard ABS-equipped brakes are fitted with new 15-inch rotors on the front brakes. Rear brakes are modified Ram Heavy Duty with 14-inch rotors. Front and rear brakes feature unique red calipers. The new front fascia features NASCAR-inspired brake cooling ducts to provide plenty of cooling for track sessions"
You will have a hard time fitting even 18" wheels with a 15" rotor. Even the 13.8's on the back of my 1500 leave under 1/4 inch clearance with 17's.
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