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Old 05-10-2007, 05:54 PM
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Caliper interchange/ specs

I was reading the thread by the guy that wants to borrow calipers for a powder coating job.

There were a few questions I had about this and wanted to get clarification without mucking up his thread any further.

Do the 4.4 and 4.6 calipers interchange without modification?
Do they have more/different pistons/ surface area?
Can either be used on a 3.0?
Can you use the same rotors, or are they different?
Do you different (larger) wheels to clear them?

I am no stranger to break swaps (I have C5 corvette calipers and rotors on my firebird) and it helps to know these things right before you are doing something like a brake job on a 70k mile car.
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  #2  
Old 05-10-2007, 06:43 PM
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check the part numbers on www.realoem.com for both the 4.4 and 4.6
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  #3  
Old 05-10-2007, 07:35 PM
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Well the p/n for the 4.6 and 4.8 is the same, and the 3.0 is different, yet discontinued. The diagrams all show the same figure, so there is no way to tell if they are actually different or not.

They might all bolt up, but if they do it appears that they are all identical in function.

If anyone else knows different, please let me know.
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Old 05-11-2007, 01:54 AM
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Why are you looking at a 4.8? I thought you asked about a 4.4. Of course the 4.6 and 4.8 are the same, they use the same brakes with 14" rotors up front 356mm I think.
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Titanium Silver/Black Alcantara

DINAN
Stage 4 Engine Software
Automatic Transmission Software
High FlowThrottle Body
Free Flow Exhaust
Cold Air Intake System
High Flow Air Mass Meter
OTHER
CCFL Angel Eyes
Stealth XM Radio in ashtray : FM Mod
Pilot H3 Fog Bulbs
Cleared Headlights: Hi/Lo Beams
Hardwired Radar Detector
IN PROGRESS
Powerstop C/D Rotors: (on backorder)
W/EBC Red Stuff (F)
W/Axxis Deluxe (R)
Dice Ipod: Aux Input for XM
THINKING
SMG II
MK4
Bluetooth
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  #5  
Old 05-11-2007, 08:35 AM
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If you change the carrier should they not all fit as the actual hub unit must be the same/nearly the same.
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