Just spent all afternoon fitting only one rock slider to the 90. a one/two hour job The problem was, as with fitting the front bumper, that the tubluar outriggers are full of galv snot from the galvernising process. I guess if you buy a posh one from Richards or whoever they clean it out for you, mine is a dipped original.
I have wobbled a 10mm reamer down it and destroyed a set of drum sanding belts and the arbour in the process of trying to clean it out. I have had to make an extension bar in order to get the sanding drum further down tube.
Managed to get one on in the end using LR no1 Hammer. Secong one needs more work. I wonder how the Pros do it.
Just had a couple of cans of Scrumpy so sorry for Forum Rants
Cheers Nick