[Shotimes] Rear rotor size

[Hartberger, Jason M. AT3]

I can't quote you exactly (making me pretty much useless for the question
asked), but I do know that the only difference in SHOs was vented rear disks
(vice solid ones later) in the 89-91(92?). I think. I'm not actually sure
about the rears... I do know that the SLOs used drums in the back, so that's
a whole other ballpark. I just looked on AlldataDIY, and it gives a part
number of YF1Z2C026BA for the rear disks on a 94. Autozone lists the same
(different) part number for a rear rotor - 54025 - for both a 93 and a 94,
suggesting no change between those two years. AZ lists a part number of 5495
for a '90, and also a 92, meaning they changed from the vented to the solid
rotor in 93. still don't know the OD of these things, though, but you can go
to an AZ or AAP and ask for one with a ruler and measure it there... the 94
rotor has a min. thickness of .5", if it helps.

There might have been some rear disked SLOs out there. I don't know of any,
but I'd assume it'd be the same disk as the SHO... commonality and all that.

I doubt it helps a whole lot, but I hope it helps a little.

Jason


-----Original Message-----
From: Jon Heese [mailto:shotimes@jonheese.com]
Sent: Monday, January 10, 2005 1:25 AM
To: shotimes@autox.team.net
Subject: [Shotimes] Rear rotor size


Out of curiosity, what's the diameter of the Gen2 factory rear rotors? 
I looked through my year or so of list archives and googled the crap out 
of it, but no one explicitly quotes a diameter measurement for the 
rotors.  I suppose I could go outside with a lug wrench and a measuring 
tape, but I reckon someone can throw this out off the top of their head.

Also, I know the size of the front rotors changed a couple times 
throughout the years, but did the size of the rears ever change?  Are 
they the same rotors found on rear disc SLO's of the same vintage?

TIA,
Jon Heese
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