GUYS I NEED HELP:MAD:

I HAVE A 12 BOLT THE #'S ARE: DD911G
THE GUY I BUY IT FROM TOLL ME THAT IT CAME
FROM A 69 CAMARO,WITH 331 GEARS.
I BOLT IT ON AND NOW IT SEMS LIKE MY CAMARO
ITS SLOW,( EXCELERATE FASTER BUT NOT GO AS FAST )
MY SPEEDOMETERITS WY OFF,
I HAVE A10 BOLT ON BEFORE #'S BA1010G1

THANKS:CONFUSED:

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68 RS ORIGINAL 327 4 BARREL 650 CFM EDELBROCK
HEADERS,2CHAMBERS FLOW MASTERS,3" PIPE.
12 BOLT REAR END 331 GEARS

I can't find any Camaros that used a "DD" axle code, full-sized Chevy's used this code, it was a 3.31:1 ratio, but the big chevy's used rear coil springs, the Camaro used leaf springs. the axles would'nt be interchangable. you may have to pull the cover off and check the pinion or ring gear, there should be #'s stamped on them, you divide one # into the other and that should be your ratio. there should be 2 numbers and a dash then another set of #'s . otherwise re-check the codes on the axle tube. Chris

Easiest ratio check is to jack up the rear end, mark prop shaft, turn wheels one turn, count # of revolutions of prop shaft; 3-1/3=3.31, 3-3/4=3.73, etc.

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JohnZ
'69 Z28 Fathom Green