This is what worked for me. No Chev, but Ford & IHC. Empty: 2-3-4-5 all in the lo side, then 5 hi at road speed. Less torque load on u-joints, the weakest link in the chain, than using the hi side. Med load: 2,lo,hi-3,lo,hi-4,lo,hi-5,lo,hi. Full load: start 1,lo then split all the way up. A few units had what we called a "long 4th". To find this out, drive in each of the top 4 gears at the same tach speed, make a note of road speed, see where 5 lo falls relative to 4 hi.If between 4 lo & 4 hi, 5 lo comes after 4 lo, then 4 hi & 5 hi. 85 model should be elec shift, but some heavier axles had elec control, air shift, drive the same. With a little practice, can make smooth lo to hi shift in 3, 4, & 5 by release the throttle & pause, no clutch. Downshift rear without shifting trans in 3, 4, or 5 by quick release & stomp on throttle, again no clutch. Splitting upshifts: trans to next higher & rear lower- shift trans first then rear, get on throttle quickly, need tospeed up driveshaft to match axle speed. Splitting downshift: shift rear up first, then trans down. Uphill, soft ground, or loaded: if it won't pick up the load at idle speed without slipping the clutch, need a lower gear. Extreme conditions in 1 lo might need about 1000 rpm to get moving. In over 40 years never hurt a trans or rear, lost 1 clutch due to engine rear main seal leak, clutch got oil soaked. In a stage coach: road test for new recuits- set a paper plate with a tennis ball in it on the floor. If the ball rolls out of the plate when starting, braking, or turning, you are giving the passengers too rough a ride. Willie
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Today's Featured Article - A Belt Pulley? Really Doing Something? - by Chris Pratt. Belt Pulleys! Most of us conjure up a picture of a massive thresher with a wide belt lazily arching to a tractor 35 feet away throwing a cloud of dust, straw and grain, and while nostalgic, not too practical a method of using our tractors. While this may have been the bread and butter of the belt work in the past (since this is what made the money on many farms), the smaller tasks may have been and still can be its real claim to fame. The thresher would bring in the harvest (and income) once a y
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