How to calculatate Spline to Height Drop for a bay (approx)

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Thanks Justin and SL

Joval said:
stagger lee said:
when i lowered my van i wrote a document explaining all this etc. i can pass it to you if you want? the values are measured as very very close approximations, measured as best as i could. but...

early van; 44 inner plines, 48 outer splines.
therefore; 8.18 degrees rotation per inner spline and 7.5 degrees rotation per outer spline.
torsion bar to hub centre-to-centre i measured at 445mm (spring plate distance).
therefore; 63.3mm drop per inner spline and 58.1mm drop per outer spline.
fine adjustment, counter drop, i.e. 1 inner spline counter acted by 1 outer spline gives 5.2mm drop.

hope this helps some?

Yay. :D

So.......

Spline to Height Drop

Inner Spline/Outer Spline/ CM Adj / INCHES

+1 -1 0.52 0.2
+2 -2 1.04 0.4
+3 -3 1.56 0.6
+4 -4 2.08 0.8
+5 -5 2.60 1.0
+6 -6 3.12 1.2
+7 -7 3.64 1.4
+8 -8 4.16 1.6
+9 -9 4.68 1.8
+10 -10 5.20 2.0

0 +1 5.81 2.3
+1 0 6.33 2.5
+2 -1 6.85 2.7
+3 -2 7.37 2.9
+4 -3 7.89 3.1
+5 -4 8.41 3.3
+6 -5 8.93 3.5
+7 -6 9.45 3.7
+8 -7 9.97 3.9
+9 -8 10.49 4.2
+10 -9 11.01 4.3
11 -10 11.53 4.5
0 +2 11.62 4.6
+2 0 12.66 5.0

if any of this is incorrect please let me know
 

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