Ok, did as terry has stated below...Held the right wheel turn the
left one revolution and the driveshaft yoke rotates one and a quarter
revolutions...Held left... turn right... same results...What gives
here? I thought the ratio stood for turns in relation to 1 as in
3.56:1, or 4.11 to 1 as examples... in this case it would be 1.25 to
1 or 1.25:1 yes/no? How so? this rear came from a '78 el'Camino SS.
This does not sound right to me. I'm going to pull the cover anyway to
replace the backing plates so I will check the number of teeth on the
Ring & pinion. It is not a posi or limited slip... What gives
Rogerg
51-3100 AD Stocker
> From: Terry Stellman <stellman@noex.com>
> To: "'ROGER GLEASON'" <rogerg@maverick.facil.uconn.edu>,
> "Truck List (E-mail)" <oletrucks@autox.team.net>
> Subject: RE: [oletrucks] Trucks:Rear End Ratios
> Date: Tue, 16 Feb 1999 12:15:48 -0600
> Reply-to: Terry Stellman <stellman@noex.com>
> Unless it's a positraction rearend, just jack up one side so that one wheel
>remains in contact with the ground. Then slowly turn WHEEL one revolution
>while you count the number of revolutions the dr>
>
>
> Terry Stellman
> 1949 3600
> Missouri City, Texas
>
>
> -----Original Message-----
> From: ROGER GLEASON [SMTP:rogerg@maverick.facil.uconn.edu]
> Subject: [oletrucks] Trucks:Rear End Ratios
>
> I saw a thread a while back about how to determine rear gear ratios
> without having to pull off the cover...Is there a way.? I looked
> thru the archives but could not find the article...When I spin the
> pinion one complete 360* revolution the axle turns 4/5ths of one
> revolution.
> If I pull the cover i could count the teeth on both the ring and the
> pinion then what?
> If I divide the ring by the pinion i am gonna get 1.08? something...
> if I divide the pinion by the ring i will get .08? something.
> DUH ! I can't believe I forgot how to do this...
> I can't believe I can spin the pinion one turn and get 4/5 of a turn
> from the axle shaft.
> Rogerg
> 51-3100 AD Stocker
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