Pinion Angle It should be 3° , measured at the flange face . Tough looking hot rod there . In 1973 , the fireman who lived next to me , got an AD and plopped a 500 C.I. Caddy angine into it , man that thing was fast . Passed anything but a filling station
Rearend swap I'm going with a 69 chevy pick up 2wd rear; 373 6 lug 12 bolt and a 3 spd overdrive tranny, to keep 3 on the tree.
Many thanks Nate! I have heard enough to think I might have to brush up on some serious math skills to get the angle. I also heard things like, "you gotta' have it all put back together before you can..., it depends on what your using as a tranny (length of tail shaft)... what angle is you motor and tranny setting at..." So that helps! It helps alot! So I can mark the width of the perches, set the axle on the perches on a nice, level bench, adjust to 3 degrees, tack them in place and then weld them (in short short runs) in place. Right? (I hope?) Just like I tell my students- if you don't know, ask! Don't worry what others may think of your questions.
Please understand , I am not a good fabircator nor a hot rod builder but : the face of the input drive flange should be 3° up from vertical . this allows thew rear end to make it's normal movements and not chew up U-joits every 4,000 miles or so . Over on Chevy Talk or the InLiner's sites you'll get lots of top - notch builder's advice from guys who do this all the time . I only know as I occasionally get stuck working on some hot rod and most of them seem to be butchered so I gotta check the basic stuff to find the real culprits . Have fun , take LOTS of pictures as you go along , you'll really apreciate them once it's all back to-gether .
Zig: Here are a couple of sites that should help you with your rearend swap. Try this one. It has loads of information: http://www.50chevy.freeservers.com/Suspension_Widths.html#Suspension Also, here is another link that should help: http://www.classictruckshop.com/driveline.php I'm getting ready to do the swap as well. Probably will get to it just after the 1st of the year. Hope this helps, happy truckin' Jcrew '50 Chevy 3100
