CRG Discussion Forum

Camaro Research Group Discussion => Decoding/Numbers => Topic started by: 302V8 on January 15, 2008, 10:05:01 PM

Title: 68 Z REAR DIFF CODE
Post by: 302V8 on January 15, 2008, 10:05:01 PM

Hey guys maybe you can help me out,  i am trying to verify all my numbers on my 68z ,  the rear axle code reads   bu  0214g1  casting b78   which all matches the car  the part im not sure of is the code bu code, several books show the bu as a 3.37 and some show as 3.73   it has 3.73 in it now.   i am just looking to see if anyone has had the problem?  thanks for any input

Title: Re: 68 Z REAR DIFF CODE
Post by: rich69rs on January 15, 2008, 10:33:20 PM

http://www.camaros.org/drivetrain.shtml#RearAxleNumbers

BU in '68 = 12 Bolt, posi, 3.73:1 ratio

Title: Re: 68 Z REAR DIFF CODE
Post by: 1968RSZ28 on January 15, 2008, 10:50:11 PM

The 3.37:1 axle ratio in those books is probably a typo (should have been 3.73:1).  There was no 3.37:1 axle ratio available from the factory on first generation Camaros.

I too have a '68 Z/28 with it's original BU rear axle = 3.73:1 ratio, 12 bolt with positraction.     :)

Paul

Title: Re: 68 Z REAR DIFF CODE
Post by: 302V8 on January 15, 2008, 11:10:57 PM

Hey thanks guys for the quick responses and i kinda figured the 337 ratio was a misprint  thanks again guys