I am at my witts end !! I run a 1978 Mk2 Travelhome. For the past couple of years it has developed a creak / groan from the front passenger side.I have spent hours trying to find the problem but everything I do has no effect. It sounds like a shock absorber or worn out bush. Things i have done are 1 replace all shocks and bushes. 2 Replace all shackle bushes. 3 Replace all stearing joints. 4 re shim kingpins.
The step and sill where very badly corrided so these have been replaced. I hoped the mot bloke would fail it but it passed.
I found the rubber bush on the center propshaft bearing had gone which I thought could well be the problem. As the shaft moves it fouled the metal frame. Just done a road test and the noise is as bad as ever.
If anyone lives near Lincoln will pay to have them have a listen cos it's beaten me !!