Here is a drawing i have made, sorry it sucks, wondering what the pinion angle should be in relation to the driveshaft, the ground, ladder bars?
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Here is a drawing i have made, sorry it sucks, wondering what the pinion angle should be in relation to the driveshaft, the ground, ladder bars?
with the lower bar level to the ground i run the pinion down 2/3 deg down
I'm with Pat, 2 to 3 down.
Simple answer to lower bar position initial setup.
Draw a line from tire contact patch throught athe C/G Center of Gravity calculated height. adjust the front pivot point to intersect that line. engine HP and bar length will dictate how hard you shock the tires, then adjust up to down to get best launch and 60'.
Use your upper rear adjustment to get pinion angle.
John
thanks for all of the help guys, i am going to stick with the ladder bars as it is somewhat of a budget build and i am not moving the frame rails and will be running 10.5'' street tires
Hey dave severson, 10,000 posts? dang thats alot
denny, 11,000 posts ? WOW
I've been here awhile.....Quote:
Originally Posted by gottabuild1
What kind of springs are you using? If they're leaf springs, you'll need sliders to keep from binding up the rear suspension.
BTW, Dave started posting back when computers were kerosine-powered. :)
The pinion angle is a function of the tranny output shaft angle.Quote:
wondering what the pinion angle should be in relation to the driveshaft
If the tranny is down 2 degrees, the pinion should be up 2 degrees.
Typical universal joints are designed to operate within 3 degrees of offset.
Any angle beyond that may cause binding.
An angle of 0 will not cause the u-joint needle bearings to rotate as they should upon proper installation.
I'm pretty sure Dave had an Eniac account in 1955.Quote:
BTW, Dave started posting back when computers were kerosine-powered.