I think the point here [MENTION=929]Phil5th[/MENTION] is don't buy the kits from them if they can't supply the bushes. I know I wouldn't.
But have brought "end of line" kits from suppliers that don't support the kit anymore and then made my own bushes.
You can make them out of anything, they don't need to be made out of metal. Or turn between centres as an alternative..
Bushes are an addition that really follows the motor vehicle, once we have them we feel that we can't really do anything without them..
A couple of points also I have just remembered.. manufacturers will change tubes and fittings as and when they like, one JR Gent kit might be the same today But buy the same kit in a years time and they may not be the same, even from the same supplier.
Also You will find that bushes for slimlines are all different, yet they are made for slimline kits.
yes, it's down to the manufacturer making his bushes to suit his kit.