Another Roadranger idea:
RTOO/RTOOF-14613 not available new, but has three overdrive gears and is good for 1,400 lbft. 11th gear is 0.85, then 12th is 0.73, and 13th is 0.62.

Grigg

if it's " RATED!" to 1400 it'll hold 1800 I'm sure it's a bit under rated for 750,000 mile life span. . .

RTOO/RTOOF-14613 << sound's like the tran's for me it a manual ?
I'll do some digging on it and see what I can really push it too

not sure what the army 5spd OD mack is rated for but i'm pushing about 1475ftlb to it. . .when i added the turbo to the old 711END it went form a 180hp 860tq doggy engine to a 315hp 1475tq snorting beast, putting boost to a non turbo diesel compression ratio and cranking up the fuel, shot the torque moon . . .by spinning an OD into an OD i got it to run 72mph@2,000rpm in stead of 58mph@2250rpm. .. . gained 14mph lost 250rpm. . .

Mike. . .


1962 GMC K3000, GMC-379 V6.