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Terry Coombs[_2_] Terry Coombs[_2_] is offline
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Default Metal fatigue sucks

On 9/10/2019 11:33 PM, Clare Snyder wrote:
On Tue, 10 Sep 2019 22:20:00 -0500, Terry Coombs
wrote:

On 9/10/2019 9:21 PM, Clare Snyder wrote:
On Tue, 10 Sep 2019 16:24:30 -0400, Leon Fisk
wrote:

On Tue, 10 Sep 2019 14:46:32 -0500
Terry Coombs wrote:

snip
Got a 3.42 gearset sittin' here awaiting install ... 2.73's just
don't cut it up here . I may decide I don't need a cam/headers/manifold
to be happy with the way it drives after I get it geared down some .
Ye'r getting old... I'm happy if it drives nowadays at any speed ;-)
Put smaller wheels on it - - - - -

My truck has 3.55 gears - but when I put the 16 inch wheels on
instead of the factory 14s it had the effect of putting in 3:27s or
3:31s

Â* I'll probably put some taller tires on this truck , IIRC it's
currently running p235/75 - 15's . Got a great buy on a set of
nearly-new Kenda's , the ones that were on it were about worn out so I
replaced them .

You MAY want to look for something with "shorter legs" if going with
bigger tires. And be VERY carefull if modifying the engine to make
sure you are increasing the low end torque - not high RPM power.

The old 292 Chevy 6, for instance, had a LOT more low end grunt than a
Z28 302 V8 even though the 302 put out a lot more horsepower. A 292
could outpull a lot of 350s. It put out 280 ft lbs at 1600 RPM
compared to a stock 1981 350 with at 289 at 1600 -some 350's put out
as much as 380 ftlbs at 3200 - which doesn't do much for crawling up a
mountain.

Had 4.57 or 514 gears in the old '69 C30 292 and we were licenced for
GCVW of 22 tons. I'm sure it was overloaded on occaision, but it was
never lacking for power to pull away from a stop. A Cockshutt 1855
with a fulkl load of calcium was well over 12000 lbs - the truck was
over 3800 - and the big tri-axle float had to weigh well over 3000 -
then throw on a 6 furrow plow - - - - and a 100 gallon saddle tank.

I got it stuck, but never ran out of torque.


Â* IF I cam it , it will be with a cam designed for low end grunt . The
305 already has a low RPM torque advantage due to it's long stroke ...
when I was a boy Dad had a '62 Chevy 3/4 ton p/u with a 235 six . Our
friends had a 50-something Ford with a flathead V8 . With similar loads
- say a slide-in camper and pulling a trailer with 2 horses , that Ford
would walk away from us on the flat . But once we hit the canyons , we
had the advantage . Ours had 4.11's , dunno what the Ford had . My old
'58 Chevy 3E Apache had 4.57's ... And a 283 with a .480/288° RV cam and
a 2 barrel (otherwise stock). Hill , what hill ? I used that truck to
pull stumps , in low range 4x4 and 1st gear it would climb a wall if it
had traction .

--
Snag
Yes , I'm old
and crochety - and armed .
Get outta my woods !