'Another option to fit a rack is NOT to mount it on the beam but on the chassis and use it as a slop free steering box by using ONE ARM ONLY . A bulkhead mounted Vauxhall /Saab rack would be my starting point . I'd alter the centre steer fitting to realign it with the original steering box and geometry and it would probably need to use the drivers side pick up point to maintain original geometry'
Can you explain this a bit further, you lost me.
I'll try On the POp set up the steering box has a single arm that drops down and connects to the ns spindle . For the purposes of minimisimg bumpsteer tat arm has to run parallel with the axle in 2 planes, 1 viewed directly from in front and the other viewed directly from above.
The rack replaces the steering box but if you connect it to the chassis and then the the beam as the beam( effectively relacing the crosslink bar ) as it move sup and down it will push and pull the steering all over and make it uncontrollable. You'll end up with excessive different toe in and out on each wheel depending what it is doing at any given moment.
In the application I suggested you leave the crossbar connected and use only one steering arm from the rack, set up geometrically the same as the steering box .
Bedford Rascals use a similar set up but they use one arm pushing backwards and forwards to the drivers side spindle.
There is a companty called Uniisteer ( USA) offering aftermarket kit conversions to do teh same. You have to be careful of the rack you use as the one end does twice the work / sees twice the load compared to before .
The Vauxhall /Saab rack should be good as it designed to deal with FWD loadings as well.