Here's a trick that, while slower than some high powered CAD package, will get you there if you have the patience to stick with it. Buy a Tabloid sized graph papaer pad and get a cheap drafting board, a 45* and a 60-30* triangle, and a T-square. Lay out, to a set scale, where the engine, trans, and rear axle are relative to the frame and the ground.
Using a hard pencil do the IC layout we talked about in LCA 101, bearing in mind Fabricator's comments that the CG is likely to be further back than my original estimate. That will get you close anyway.
There is a way to measure where the actual CG is, but you will need to find someone with some scales and a free part day. I have a qwik corner weight checking tool that uses a beam type torque wrench that would work for this.
Now for the trick part: Get some single thickness cardboard or really thick construction paper and some thumb tacks. Layout the LCA, UCA, and axle in the heavy paper. You don't need an exact scale creation of these, just where the important points are. Thumb tack the fixed ends to the board and use more tacks upside down as pivot points. I would carefully Xacto a slot in the 'axle' that represents the pinion gear centerline with the forward end of the slot being the UJ CL. Now you can move the assembly and mark the travel path. If you make the 'arms' long enough (past their fixed pivot points) then you can easily extract where the IC has moved to. If the pinion 'slot' is to scale then you can extract what the pinion angle is at any point and you can figure out how much change (Delta) there is in the driveshaft length.
Buy the Herb Adams book. Buy Carrol Smith's books. Buy Van Valkenburg's book. Read them, digest them.
TS
I used swerve around my halucinations, now I drive right thru them.
