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General Discussion => General Discussion => Topic started by: rwg65 on April 19, 2012, 01:43:38 PM

Title: differentials
Post by: rwg65 on April 19, 2012, 01:43:38 PM

Anyone know casting numbers for 65 gs differentials. Bought a complete rearend but it has no stamps on it, just casting numbers.
Bob

Title: Re: differentials
Post by: Brian on April 19, 2012, 07:44:21 PM

Look at the heads of the special bolts that hold the brake backing plates to the end of the axle tubes.  A standard 65 Skylark rearend has oval shaped head bolts, and a '65 GS rear end has round headed bolts that have a flat spot cut on one side.  This also applies to the station wagon rear ends, but they are easily distingished because they have 2.5" wide rear brake shoes on them and have higher bump stop mounts welded on the tubes. 

Title: Re: differentials
Post by: rwg65 on April 19, 2012, 10:33:51 PM

It has the flat sided bolts as you described Brian. Any idea what it should measure from axle face to axle face?
Thanks Bob