THE ACTUAL PROBLEM IS NOT SILICONE,WD40, OR ANY LUBE. IT IS PLAIN AND SIMPLE THAT THE STRUTS ARE NOT STRONG ENOUGH, ESPECIALLY ON TONU WITH THE CARPET KIT. I HAVE BEEN AT ODDS WITH GM SINCE DAY ONE AND I GET THE SAME RUN AROUND ABOUT THE RUBBER NEEDING SILICONE. IT LASTS ABOUT THREE DAYS AND THE DUST COLLECTING ON IT IS WORSE THAN EVER.cruzned said:My tonu has always lifted all the way up without assistance until this week. I have read many posts about others having probs. with that. Well....today I put silicone spray on a rag, rubbed down the rubber all around the bed, and voilla, the top pops up without assistance! Problem solved. You have to do it on a rag because the spray may damage the paint.