hungryhippo

I have a 2009 base c6 and need new front hubs. I think I need the zr1 hub with bosch active abs, but my wiring harness is dated 11/2008 and I see "delphi" on it. The connector on my hub has no brand and I don't see any part number. I don't want to spend 700+ for the wrong part. Does anyone know how to tell which hub I need?

StKnoWhere

In theory in 2009 GM changed from a Delphi ABS system to a Bosch ABS which uses a different pulse for ABS hub signal than previous models. I think the ZR1 hub is suppose to work.

This post indicates the ZR1 have a yellow wiring pig tail, and all of the standard hubs on the 1997-2008 cars use a grey or black pig tail.

http://forums.corvetteforum.com/1576511192-post7.html

The harness may not have changed.

96CollectorSport

I recently went through this with an 09 and another way is to count the splines on the rear wheel bearings, you will either come up with 31 or 33 - bad thing is I can't remember which is which.
Paul at Van Steel walked me through it.

hungryhippo

Thanks for the info. I don't see anything yellow in the harnesses. After checking some part #'s from different sites, there shouldn't be any change midyear so I'll go with the newer active hubs.

StKnoWhere

This post indicates passive is 30 tooth.

http://forums.corvetteforum.com/1587686517-post6.html

Bosch

http://www.shop.hoosierpe.com/C6-X-T...D-10588-WP.htm

morris

check amazon before you buy, I got mine a couple months ago for hundreds of dollars less than anywhere else.