The previous rear suspension design was of a semi trailing arm design, meaning that the pivot of the arm was angled to provide additional negative camber under compression, which seemed like a good idea at the time. However, the new 8" wide rear wheels mean that the arms need to be moved inwards to allow for the offset. So... to allow for future wheel size changes, the arms are going to be trailing with straight pivots. Then different widths can be fitted by just moving the pivot brackets left or right.
The old arms were chopped & bodged together with straight pivots, then mounted on temporary brackets to work out the positioning for the hubs (and to keep the van mobile!)
The bellhousing template employed as a swing arm jig, with important measurements for pivots & hub taken from the old arm.
A few bits of steel to show the position of the new HD rose joints.
Rough layout of wooden chunks to make the jig.
Blocks screwed on, steel cut and ready to weld.
Welded up, with a Scorpio hub carried attached. Further triangulation and a shock mount will be added later after a trial fit in the van
Both hubs on the 'axle jig' (yes I know it's another bit of chipboard!), with a hub in place.
Swing arms mounted and wheels on.
Suspension mounts roughly in place.
I had been a bit unsure about the size of my rod end brackets (aren't we all), but looking at a couple of other things I think I am ok.
Pics of trailing arm from an autograss car
Z Cars pics to show pivot brackets.
Here's how the van sits with the engine and gearbox back inside.
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This page last modified 08/01/2008.