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trainman · 02-22-2014, 04:50 AM

Does anybody know if the Z28 rear end is the same size as the ZL1 or the SS? The reason I ask is because I have a CTS V Coupe 6M with 3.73 and if the Z28 has the same 9.9" rear end as the ZL1, I am hoping the 3.91 gears will work in my car.

02-22-2014, 04:50 AM	#5
trainman Drives: 2012 CTS V,2000 Firehawk, SRT Ram Join Date: Feb 2013 Location: Bakersfield, Ca. Posts: 92	Does anybody know if the Z28 rear end is the same size as the ZL1 or the SS? The reason I ask is because I have a CTS V Coupe 6M with 3.73 and if the Z28 has the same 9.9" rear end as the ZL1, I am hoping the 3.91 gears will work in my car.