The thing about AVOs on trad Morgans is that they were available in a range of extension lengths, and it was important to ensure you got a set that matched the minimum/maximum movements available in your suspension system, you really didn't want them to top or bottom out. My '86 4/4 originally came with Armstrong shocks and I fitted an aftermarket rear hoop from Melvyn Rutter so I could use telescopic dampers (and also to stiffen up the rear end). This kit came with Spax shocks and they were fine for many years.
When I fitted my SSL Front kit in April 2013 it came with Bilsteins, and I decided to replace the rear shocks at the same time, AVOs were the obvious choice at the time. When Kevin Vernon and I came to measure up the suspension movement we realised that the stock AVO lengths weren't right - the short ones would bottom out and the long ones would top out. Fortunately at that time you could still get custom ranges and Tim Ayers (who was the main source) was able to get me a set of custom AVOs at no extra cost and they've been perfect ever since
I sometime wonder whether some of the reported issues with AVOs have been because people haven't been careful to get a set with the appropriate movement range for the particular car. I guess it's all irrelevant now if AVO are no longer in business.
