Quote:
Originally Posted by AluminumMonster
**Edited**
I edited this post because I mistakenly thought we were discussing if the front rotor center bore is the same between a 4th gen and a 5th gen 4Runner. They are, I took measurements.
However, the previous page is discussing rear rotor differences between the 4th gen and 5th gen, which do appear to have different center bore sizes. I didn't upgrade the rear brakes on my truck so I can't verify the measurements for the rear rotors. Sorry for the confusion.
In my opinion, if you are doing the rear brake upgrade, you should stick with 4th Gen rotors. For the front, I recommend 5th Gen rotors.
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Here are the Specs that back up what
@
AluminumMonster
and others have said...
I WOULD USE THE 4th Gen Rotors for the REAR and not the 5th gen.
You can use the 5th Gen Calipers on the front and the rear brakes.
You can use the 5th Gen Rotors on the front,
but
I WOULD NOT USE THE 5TH GEN ROTORS on the REAR.
The center holes differ by 1.9mm between the 2010 & 2008
REAR rotors,
while the center holes are the same size for the 2010 & 2008
FRONT rotors.
Below are the specs for Centric Parts rotors along with images take from Partstrain.net
2010 Rear Premium Rotor from Centric (Part #120.44175)-- Hub Reg: 108mm
2008 Rear Premium Rotor from Centric (Part #120.44128)-- Hub Reg: 4.18 inches (=106.17mm)
2008 Rear C-Tek Rotor from Centric (Part #121.44128)-- Hub Reg: 106.1mm
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To Summarize...
If you want to upgrade your 4th gen to use 5th gen brakes...
Front: Use 5th Gen Calipers w/ 5th gen Rotors
Rear: Use 5th Gen Calipers w/ 4th gen Rotors (because 5th gen have a different size center hole).
BTW, I'm just looking at the specs and noting the size difference.
Anyone who's more knowledgeable should chime in to say if the larger
center hole on the 5th gen rear rotors would make a difference safety wise
or performance wise. I really don't know, but since the specs are different,
I would not use the 5th gen rear rotors on a 4th gen 4Runner.