Re: when is a 5 x 4 not a 5 x 4 ?
The 5 speed shifting pattern with the 4L-5L then 4H-5H is known as a working 4th and usually is found on 2 & 1/2 ton Chevy and GMC Medium trucks with a 5 speed Clark trans.
If the rear axle gears are right it works great, I have put thousands of miles on a C65 with this shift pattern
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