Not sure I'd go down the cheap route again. All 3 joints on them are rubbish.
I ended up getting replacement bushes and swivel joints and refurbishing the original wishbones. One thing I did do though was assemble the front bushes 90 degrees rotated to the originals as the bushes are the "figure of eight type". The original fitment leaves them weakest in the lateral direction (or strongest vertically). Where is the sense in that?
The steering is now much more precise with none of the floppiness over white lines or camber changes. More importantly the tyre wear is much, much better.
I looked for poly bushes at the time but couldn't find any to fit an Omega.
This is the problem IMO. Some have had good results with cheaper wishbones. Some, possibly the majority have not. It's a complete gamble what your getting even if a good set of £50 bones are found, who's to say the supplier is still selling the same product for someone else recommended to them? The seller may may have found A cheaper supplier and saved himself a pound an item....? Or he bought a batch and the first ones where fresh rubber, the second set sat on the shelf for god knows how long since the first set wore out.
Avoid items from butpartsby, first line, delfi. All known to be rubbish in the past. Although conversely they may have had bad batches. Who knows? But is it worth the risk? Tyre wear is expensive enough, handling is not to be messed with, as is labour costs of fitting, agro of diy fitting, and set up charges all to be repeated in 3 months in some instances where bushes and ball joints have failed early.
My personal view is GM bones are massively over priced at £225 a side according to prices I have seen. Lemforder make them for vx and can be had direct from Lemforder via
http://www.allgermanparts.co.uk/ourshop/cat_277900-Steering-and-suspension-components.htmlAnd come with a two year warranty for 120 odd a pair to the door.
Now, there have been some issues with these too. Namely MarkDTM being one, if I may speak for him in his absence, who's front bushes failed just short of two years old I believe. That's considered an early failure with lemforders, and he himself will admit that any manufacturer will have the odd failed part on a production run, and who knows how old they where when fitted anyway.
There has also been talk of some Lemforders being supplied with non tapped holes for the hid light sensor, meaning a nut and bolt needs sourcing by the fitter.
Also, as Mark suggested himself iirc, it's the front bush that's critical, rears less so. So fit Polly to the front only and carry on, the wishbones does not need to be removed even. Once the old bush is cut out, as covered in the guides, Polly just push in, do the bolt up and away you go.
So anyway, IMO. Buy lemforder with two year warranty from Allgerman, they'll be fresh as they come from ZF directly, you know what your getting, and if they fail fitting Polly in the front bush makes perfect sense to me.
Middle of the road price with best chance of longevity and recourse under warranty .... IMO.