SUSPENSION MOUNTING
One of the early jobs in the building of a Libra, is the fitting to the tub of the front and rear wishbones. The tub has a series of 'dimples' cast into the mounting faces to indicate where the holes should be drilled for the mounting plates. In every case, the best technique is to drill one hole, and then offer up the assembly to position the rest of the holes. A fairly safe method is to mark a second hole diametrically opposite to the first, drill it, and then bolt up the bracket using the two holes. Now the rest of the holes can be drilled out using the bracket as a drilling jig.
 

FRONT SUSPENSION

front wishbones This view of the front right hand suspension shows the upper and lower wishbones bolted onto the tub. There are two things not mentioned in the manual.

1. The wishbone to bracket bolts must be fitted as shown, with the bolt heads on the 'inside' of the wishbones. This is so that when built, it will be possible to withdraw the bolt.  The rearmost brackets are quite close to the bulkhead, and there is just room to get at the nut, but it would be impossible to pull a bolt out in that direction.

2. The bolts holding the brackets to the tub, should be mounted with the nuts on the inside - NOT as shown with the nuts on the outside. They are only 6mm and with a small amount of corrosion will be very difficult to remove, if you need to shim the brackets later. I turned all mine round after taking this photo! There is a construction issue here as well. If you look at the internal spreader plates (below)
spreader plates on suspension mounts These are the internal load spreader plates on the front suspension. Once again, note that the nuts should be on the inside, not the bolt heads as shown. These plates distort to form a close fit to the internal surface of the fibreglass tub. This means that it is possible that the bolts will assume a bend as they tighten up. Therefore, it is important that when tightening these fittings, that the nut must be rotated onto the bolt, not turning the bolt into the nut. Otherwise the bend in the bolt will become a rotational bend and very quickly weaken it. In any case, care needs to be taken to prevent overtightening these small bolts.
REAR SUSPENSION  
REAR SUSPENSION The rear suspension is held onto the tub in the same way as the front. On the left side you can clearly see the two 'trailing' upper and lower wishbones attached via adjustable ball joints to the vertical brackets.  For each wishbone bracket there is a forward and back adjustment. This enables each rear wheel to be adjusted for track and camber. There is a separate 'steering' adjustment for the rear hubs, allowing toe-in to be adjusted. The wishbones have offset mountings, which enables some dynamic rear wheel steering for additional stability in roll.