<VV> RE: Differential rebuild

[Kirby Smith]

I did this in the second phase (of 4 so far) of my 30+ year intermittent 
restoration project using gears from, I believe, Crown.  I have 
positraction.  The original spider gears broke after about 300 laps over 
a few years at the local race track.  I had a Chevy dealership replace 
them at the time, but later when I seriously got into reconstruction of 
the car, I replaced them with the 4-gear design.  You will need to be 
able to make appropriate measurements in the differential as shown in 
the factory service manual.

kirby, '66 turbo Corsa


Cliff Tibbitts wrote:
> Question regarding the differential.
> 
> I have a stock '66' 3.55 differential, not posi.  I have been advised by a
> few people to replace the two spyder gears with a 4 spyder set up.  Clark's
> maintains that there are no modifications necessary to the case.  However, I
> don't know of anyone who has actually done the work themselves.  Usually,
> they prefer to send the differential out and let someone else work on it.
> Any of you done one at home?  How hard is it?  Everything is out of the car
> now and there is no time like the present. 
> 
> Cliff Tibbitts 
> 66 Monza 140/4sp
>