Do you know what mechanism was used, or what model in the Access line? My 2004 vintage model 329B (two small slides) used the Kwikee screw-jack mechanism, and it has been eminently reliable over the 13 years I've owned and used it. Because the jack has a slip clutch, it does a pretty good job of protecting itself against misuse (like moving the slide into obstructions_ As far as I know Winnebago kept using the same Kwikee mechanism in the 329B models until the model was discontinued.
But the same mechanism, used in pairs in longer slideouts, has been a problem for some customers, if the two jacks get out of synch so that the slideout gets a bit sideways (e.g. if only one end is obstructed). There is a procedure outlined in the manual for getting the pair working together properly, but not everybody reads the manual or understands the procedure. Second owners and beyond may not even inherit the manual.
I am looking at the brochure for the 2008 Access and do not see a 29-foot model with a slideout, unless it was offered as an option, as it had been in 2007.
Tom Test
Itasca Spirit 29B