CRG Discussion Forum

Camaro Research Group Discussion => Decoding/Numbers => Topic started by: janobyte on July 06, 2014, 01:23:13 AM

Title: ring and pinion date code
Post by: janobyte on July 06, 2014, 01:23:13 AM
Where are the date codes located ? End of the part number ? eg: 2 68 ? 
Title: Re: ring and pinion date code
Post by: ZLP955 on July 06, 2014, 03:45:51 AM
Not sure on pinions, but the ring gear usually has part number, ratio (xx yy), and date code (m/mm, yy).
Here's an example from chevellestuff.net:
(http://chevellestuff.net/qd/rearcast/3862526_10_41.jpg)
Title: Re: ring and pinion date code
Post by: janobyte on July 06, 2014, 04:07:35 AM
mine are coming out (ring gear)    10  41 2 68 ,I know they are the gears the car shipped with ,just trying to break the code, assuming should coincide with rear end housing build date.

pinion stampings are pronounced  I see  what can be interpreted as 4:10 and 68, not sure of the month and digit order as it relates to.

Pretty cool ,still have the box the 4:88's came in 69 (Milad's) when #2 owner ordered them...4:10's have been in it ever since.
Title: Re: ring and pinion date code
Post by: bcmiller on July 06, 2014, 04:31:55 AM
mine are coming out (ring gear)    10  41 2 68 ,I know they are the gears the car shipped with ,just trying to break the code, assuming should coincide with rear end housing build date.

pinion stampings are pronounced  I see  what can be interpreted as 4:10 and 68, not sure of the month and digit order as it relates to.

Pretty cool ,still have the box the 4:88's came in 69 (Milad's) when #2 owner ordered them...4:10's have been in it ever since.

Your ring gear is dated February of 1968.  

On pinions, sometimes the month is a bit off from the year.  See this attached example.  1 69 on this one.
Title: Re: ring and pinion date code
Post by: janobyte on July 06, 2014, 11:57:53 AM
thanks
Title: Re: ring and pinion date code
Post by: bcmiller on July 06, 2014, 01:02:22 PM
And here is another pinion that was paired with a 3 of 69 ring gear.  Honestly I am not sure if this pinion is dated 2 of 69 or 4 of 69.

Dates on the ring gear are normally very easy to determine.   :)