Gimpy - you should've asked me on Zil131.com! Your first mistake was choosing URAL over Zil but oh well, now you're commited...at least it's not a GAZ66
On my 131 the box is strong enough to allow almost any standard column type tail lift to be attached. You see these tail lifts on all kinds of mundane 7.5 tonne delivery trucks. Mostly they have a platform to roll the goods onto and often the platform can fold up. They are electric and at the press of a button will lift the payload up and down. Google tail lift and you'll see what they are. Also you can pick up second hand ones off ebay cheap (< £150).
To maintain the departure angle the apparatus should lift the bike quite high, about half way up the box and for our application I don't trust these tail lifts to be sufficiently robust enough to carry the bike off road long term - depends on the bike (I'm fixing a heavy Ural K750 - my KTM goes INSIDE!) you might feel the tail lift/platform is plenty strong enough. This means you need to fabricate a platform to rest and attach the bike on/to having lifted it up. I'm planning to emulate the spare wheel carrier for this purpose, attached to the chassis and hinged like the spare wheel carrier is. This is what will carry the bike on the move, the tail lift is there just to lift the bike. The platform of the tail lift will be altered just to lift the bike beneath its' tyres or depending on what I get maybe fold out of the way.
With your LAK body if you want to use a column lift you will need to have a structure fabricated to attach the tail lift to (the vertical runners) as the fibre glass my not take the strain. You are fortunate that your East German URAL has the spare wheel between the cab and box so you have more room on the back of the box than other URAL's or my Zil will have. There is another type of tail lift called a "Tuckaway" or cantilever type tail lift that may be more suitable for your truck. Download this PDF and you'll see how this one works http://www.palfinger.com/palfinger/20360_EN.pdf
but basically it attaches to the cross member at the back of your chassis rail only - no vertical columns needed and tucks away there when not in use. The absence of the spare on the back might mean you can lift your bike to a lower height which these lifts seem to do and still maintain the departure angle and it might be robust enough to carry the bike on the move too so no further platform will be needed. One of these designed to lift 1,000 Kg or reven 2,500 kg should carry a 200 kg bike even off road and if you can score a re-conned one...If I can find one cheap or re-coned I may use this type myself on my Zil if it lifts high enough. In this PDF there's a wide range of tail lifts complete with dimensions and drawings, check out the partial width cantilever type in particular: http://www.rossandbonnyman.co.uk/pdf/TAILLIFTS.pdf
There may be simpler solutions than this but most of the kit is standard and a bit of welding and fabrication and you have a getup as strong as the rest of your truck - your fabricator should be able to figure it all out. Also you will still be able to use the rear doors AND lift up 600 tins of amber nectar in one go! Can't be bad.
And that KTM better be a 950 Enduro R too or you are just gonna spoil the whole image of your URAL
Last edited by Fastship; 9 Jan 2009 at 12:23.