----- Original Message -----
From: [EMAIL PROTECTED]
To: Multiple recipients of VACList
>If you would change that rear end ratio to a 3.91 to 1, you would take the
>pressure off the transmission and also pull a lot of at t good speed. I
>have changed the pickups to this ratio and actually improved the gas
mileage
>with a 318. just returned from pulling a 24 ft gooseneck horse trailer.
from
>OKC to Lexington KY with a 318 overdrive auto and 3.91 to 1 ratio. Got 14
>pulling against a SE wind all the way..
I don't have an overdrive transmission in the '68. I don't know what ratio
it's running, but I'd say it's either 2.76 or 3.23. If I can find parts, I
might step it up a ratio or two. It's a higher compression engine than the
newer ones. I understand that the newer low compression engines respond very
well to a numerically higher axle ratio. Higher compression engine run
better at low RPM than low compression engines do, from what I've read. I
don't think I'd want to go as high as 3.91 without the overdrive
transmission. At least the change over would be easy since it has the 8.75
inch axle.
Maybe since I added the transmission cooler I won't have any more trouble
......one way to find out!!
MARC WEIMER
Punxsutawney, PA - Home of the Groundhog
#15767
1963 Globe Trotter
1971 Globe Trotter
http://users.penn.com/~mweimer/weimer.html
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