Started the long journey to getting steering sorted.
A while back
viewtopic.php?p=265090&hilit=Steering#p265090, I pulled the steering box apart only to find that the worm shaft has pitting on the top thrust bearing face. I made a few enquires regarding hard chroming repairs but no one was too enthusiastic about taking the job on.
Started looking for HR steering boxes on Ebay/Gumtree, and in a moment of desperation I bit the bullet and purchased a FB/EK major overhaul kit. I figured worse case I would have to go back to the 14:1 ratio. Then I had second thoughts, left the search reminder for HR steering boxes on, and found another shiny thing to play with.
Flash forward a year and I started thinking about this again. Decided to bite the bullet and try to get a 'good' secondhand HR column, strip it for the shaft which will end up being cut up and grafted onto a collapsable column anyway. Found one on ebay, got in contact with the guy to confirm that after 30 years of dry storage that the shaft turned smooth and freely. He said it did, sells them all the time - no complaints. Ordered, it arrived, and I unwrap the package and give the end of the shaft a twist.
Rough as. Slump shoulders - buyer beware and all that - pull it apart to see how bad it is. It's bad, worse pitting than the one I'm trying to replace. Nothing in this box can be saved.
Give the guy a call. Super apologetic, had another one that he nearly sent which he thought was smoother

, will send it to me if I pay postage. At this stage what have I got to lose.
Days pass, it arrived, give it a twist and it's perfectly smooth. Contemplate leaving it as is, and switch over from the current box which I thought was HR. Pull the box out after a year and rediscover that the box out of my car has 3 holes to mount it. The 2 HR boxes I now have are two hole mounts. Slump shoulders again. Search the internet for pictures and there is it - my steering box is an EH/EJ box, with one hole plugged and redrilled to matched the FB/EK pattern.
So it is back to the original (lazy) plan of new(er) HR guts in my modified EH box. Strip the HR box, everything is in good condition, bit of wear but overall very happy. Thrust bearing cup on both ends of the box are smooth and I figure I might as well switch the steering shaft adjuster nut over to the HR one which, based on everything else, looks to be in better nick. Then I remember that the pitting on the steering shaft on my box is on the upper part of the worm drive, and I never looked at the thrust bearing cup face inside the top of the box.
Slump shoulders yet again. It has pitting that is at least as bad as the shaft so I need to replace this cup.
Search up replacing steering thrust bearings which takes me straight to Brett's Wilma build (
viewtopic.php?t=23663&sid=89f215cfd2447 ... art=75#top). All good info here, and I'm pretty confident I can do this and have the first HR box to test with. Just need the bearings, which are in the major steering upgrade kit. Seems a shame to break up this kit for a couple of bearings so start to do some research, using the assistance of the part numbers that Rob supplied in the Wilma build. 5666683 worm thrust bearing cup. 5666693 worm thrust bearing. Down the rabbit hole we go, a few good links with dimensions......
Cage OD 1 5/16" (33.34mm) Cage Center Hole 13/16" (20.64mm) Bearing Cup OD 1 1/2" (38.1mm) Bearing Cup Hole 1 1/16" (26.99mm)
......but no local sites selling 5666683/5666693 with the above dimensions (assuming that they are right). Then find an American site that says the part is interchangeable with a bunch of other brands/cars/forklifts/ride on mowers.
5666683/5666693 (GM) (MBS),311142+311161 (SKF), 8537 (Timken/ C&H), BCA-8537,J3200492, 5691731 (Crown Automotive ),F-110085 (INA), C2AZ-3571-A (&*#@), C2AZ3571A+C2AZ3552A (&*#@), T199, N1534, M86381, 072062,21847, A2954, 32004913200492, 3200491+3200492, 76867/76868, 510945800/5106598
Further down the rabbit hole for about 10 minutes, multiple tabs open, some ID dimensions are different etc., eventually I decided to give up and call ABC bearings in the morning.
Morning comes, more thinking, look at box again and compare with HR box. Looks like there was a spring missing in the EH box pitman shaft which might explain why the steering was a bit 'floaty". Pitman shaft is worn all the way to the end so no doubt the bushings are not the best. Time to admit defeat of my half arsed plan and actually do a full reco on the EH box, using the HR worm shaft, ball nut and pitman shaft. Search and find what seems to be the last available minor repair kit online from Resto Country. Ordered. Clambering out of the rabbit hole and dusting myself off. Will hang on to major steering repair kit until the steering is done just in case.