[mockingbird812]

Not heard of a CKK for a '70 Chevelle (but see it listed on '70 Chevelle rearend axle ratio lists) - but have heard of CRW 4.10 4 spd and CRR(?) 4.10 auto. There may have been a late '69 Camaro designation of &quot;CKK&quot; (KK was a '69 and earlier code for 4.10 posi) due to continued making of 69 Camaros thru most of the 69 calendar year. These late 69 Camaros started getting the 3 letter designation, i.e. CXX. I'm thrashing here, some of the smarties will set me straight. [img]<<GRAEMLIN_URL>>/dunno.gif[/img]