The lifter shortage situation effected ALL lifters (mechanical flat and roller, as well as hydraulic flat and roller), for all makes of domestic vehicles. Bad news is that the Hy-Lift plant is pretty run down and they will be consolidating two plants into the existing main plant in Muskegon. Bad news is that the new owners are estimating that it will be approximately 6 months before the plant is running at capacity. So, the lifter shortage is likely to be with us for awhile longer. The Topline organization is pretty well known in the aftermarket, for doing things right - so I think they will be very successful in this business too.
One problem is that, once prices are raised on any commodity, due to shortages - it is unlikely that the prices will ever go back down to previous levels.