Replaced both this week on the '05. 78K and some slow starts with rough idle when the grids kicked on were cause for concern. It was interesting, I was worried about injector issues because of the terrible rough idle when the truck turned over slow and the grids kicked on. The passenger side also had some corrosion issues. Replaced with 2 Diehard Platinums... poor starter lights up faster than ever! No more rough idle at start with grids.
Cheers.
Cheers.