The Godfather 4L60E/4L65E is the sweet spot for serious street power. Mad Dog reprogramming and a shift kit come standard, the weak factory sun shell is replaced with the hardened Beast shell, and the whole unit is dyno-tested before it ships.
Free freight shipping to most states in the continental US, delivered to a business address or your nearest freight terminal. Pacific and Mountain time zones plus ND, SD, and NE: add $195 (commercial address) or $225 (residential).
Every Mad Dog transmission and torque converter ships with a 1-year unlimited-mile warranty. No mileage caps, no fine-print games. Extended Silver (+1 year) and Gold (+2 years) coverage available on every unit.
No core charge. Where a core charge applies, you get it back when we receive your rebuildable core — and we make the return freight easy.
Installation is available at our Alpharetta shop. Call (770) 781-0949 to schedule, or have your local shop bolt it in — every unit is a direct bolt-in replacement.
Yes. Every Mad Dog unit is a direct bolt-in replacement for your factory transmission — no modifications. Electronic units ship pre-programmed to your VIN, so there’s no dealer visit and no guesswork.
No. Electronic transmissions are pre-programmed to your VIN before they ship. 700R4 units don’t use a computer at all. If your engine is heavily modified, call us and we’ll set the unit up to match.
Most Mad Dog units have no core charge at all. Where a core charge applies (700R4 Godfather, 4L80E, 6L80E/6L90E) it’s listed plainly on the product page — and on the Godfather 700R4 it’s already included in the price.
Call (770) 781-0949 for current build times on your unit. Every transmission is built to your order — your horsepower, your converter, your options — and dyno-tested before it ships.
Every transmission and converter carries a 1-year unlimited-mile warranty, standard. No mileage cap. Extended Silver and Gold coverage is available if you want more. You deal directly with the shop that built it — not a call center.
Then don’t buy it — call us. We build customs to 1,500 HP, and we’d rather steer you to the right unit than sell you the wrong one. Over 800 HP on a 700R4 platform, the answer is the 4L80E.
No mystery parts
The hardware that makes a Mad Dog unit 35–40% stronger than factory.
Raybestos high-temp, high-energy clutches throughout. The Z-Pak puts 15 clutches in the 3-4 drum where the factory ran five.
Oversized, hardened sun shell at 3x factory thickness. The single most common 4L60E failure point — engineered out.
13-vane (Punisher) or 10-vane pump rotor with 4140 hardened rings and a Teflon pump bushing, plus a 500 boost valve for line pressure that holds under load.
29-element double-gauged sprag — 34-element in the 4L80E — and cold-treated 4-pinion planetaries that shrug off shock loads.
