Actually the "Z" spec can be ordered with different 1st gear ratios.
The standard older 1st gear ratio is 3.35:1. The "Z" spec in D&D's ads for $1000 has a 2.95:1 ratio. It does make first gear taller, but with a 3.35:1 a Z spec is rated at 305 lb/ft instead of the 330. It does make a difference out of the hole, but I would think Mr 5.0 would have wanted it that way for a more usable 1st gear with his 3.55's. I'd like the Z much more than the standard tranny if I had 3.73's or higher.
Anyway, I had my Z spec shipped to my door from D&D performance in 2 days for $1100. Install went great, it shifts awesome, and I've got no complaints over the 10,000 miles I've had it.
|