ello chaps,
well the mighty aupickup came round today and we installed the rear suspension in about ten minutes.
a really good method for a van is as follows:
1. Make sure the larger of the two round ends of the springs is at the front of the vehicle
2. Put bushes on front pin and in large hole, and push spring on to front pin. do the same on both sides, so that the front end of each spring is on its pin and the back end of each spring is resting on the ground below where the rear shackle plates go.
3. Assemble the rear end of one of the springs: bushes, pins and shackle plates - best sequence is to put bushes on both pins and put them through the holes in the chassis rail and the hole in the rear end of the spring, then put the inside shackle plate on to the pins and do up the spring washers and nuts on the inside end of the pins. Then push the outer shackle plate into place on the other end of the pins, put the spring washers and nuts on to the outer ends of the pins, and do everything up - not excessively tightly.
4. Grab your rear axle and thread it through between the chassis rail and the spring which has been done up at both ends.
5. Hold the axle in place (assistant, or jack, or both) while you assemble the centre section of the same spring: bump stop, U bolts, axle bracket, clamp plates and rear damper plate. It's easiest to do this by threading one U bolt through all its relevant holes, putting nuts on to the ends of it, wiggling the bump stop under the top arch of the U bolt, then tightening the nuts: then threading the other U bolt through its holes and doing up the nuts on it too, making sure that the bump stop is pointing in a sensible direction so as to make contact with the chassis bracket above it if need be.
6. Still holding the axle in place, do up the rear shackle fastening of the other springs, so that both springs are now held up at both their ends.
7. Assemble the centre section of the second spring in the same way as the first.
8. Tighten all nuts, and put lock nuts on to U bolts. Make sure the split pins are in place in the castellated nuts on the front spring support pins.
I couldn't believe how easy the Superflex polybushes were to install - they just glided into place with no fuss and no bother at all - not like trying to wrench the springs off the old rubber bushes! Probably cleaning up the front support pins had helped a lot (got rid of all caked-on old rust and grease and rubber, down to clean metal).
Obviously the van needs to have been jacked up at the rear, and supported on axle stands under the bits of the chassis which terminate in the front shackle pins.
Hope that description made sense, and that it comes in handy for any van owners needing to do the same job!
wibble xx
ps we put the engine and gearbox back in while we were at it
