4L60E Alto wideband /power band
with sonnax heavy duty 1-2 accumulator spring.
also comes with an upgraded 1-2 accumulator piston
that adds a firmer 1-2 shift and 3-4, adds durability due to its width, and also has stronger anchor points, stops reverse drum surface warp, a must-have in all V8″s.
The redlining has even more bite than the dark high-energy lining…
The factory plastic piston always wears or cracks, the alloy upgrade has a long shaft hole for more support
12-month warranty against breakage!