Rpm differential
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
You could not get a Z51 in 2009. 2008 was the last year for the Z51. 2008 is the year can get a 6060 that has both the correct output shaft and cooler that will bolt into a 2006 or 2007 Z51.
Also, European Z51 cars had a cooler, so you can add a cooler to base diff with factory parts. I have one.
Also, European Z51 cars had a cooler, so you can add a cooler to base diff with factory parts. I have one.
Last edited by timd38; Oct 30, 2016 at 03:50 PM.
Safety Car
Joined: May 2011
Posts: 3,807
Likes: 508
From: Oshawa, Ontario
You could not get a Z51 in 2009. 2008 was the last year for the Z51. 2008 is the year can get a 6060 that has both the correct output shaft and cooler that will bolt into a 2006 or 2007 Z51.
Also, European Z51 cars had a cooler, so you can add a cooler to base diff with factory parts. I have one.
Also, European Z51 cars had a cooler, so you can add a cooler to base diff with factory parts. I have one.
Last edited by irok; Oct 30, 2016 at 07:35 PM.
Race Director
Joined: Aug 2005
Posts: 13,592
Likes: 187
From: Hudson WI
NCM Sinkhole Donor
[QUOTE=irok;1593363792]2009 Z51 cars are pretty common.lots of them out there.09 auto cars came with 30 spline out put shaft.not sure about the manual cars though[/}
ok
ok
Last edited by timd38; Oct 30, 2016 at 07:57 PM.
Former Vendor
Joined: Sep 2010
Posts: 682
Likes: 11
From: Anderson Indiana
Z51 was available in 2009 according to my GM parts rep. The KNR differential cooler package requires more than just parts acquired from your dealer. You must machine your pinion gear for the differential pump drive as well.
