Performance Built 4L60 or 700R4 Transmission and Torque Converter
Our Turbo-Hydramatic THM 700R4 transmission is our most popular is our most popular automatic to date. Its popularity is no mystery due to at the large variety of GM, Chevy and other vehicles these transmissions are compatible with. Not to mention how popular the 700R4 transmission is for use in conversions such as hot rods and race cars.
Our Quality Assurance
Our GMC 700R4 transmission exceeds industry standards in torque handling, performance and value. We load every unit with the latest in aftermarket upgrades. Our rigourous testing process ensures customers that our 4L60 transmissions live up to the Smart Parts name.
700-R4 VS 4L60
The 700R4 has been called many different names. One of the most popular is the 4L60. Any way you say it we are talking about the same transmission. one of the easiest ways to identify the 4L60 transmission is the distinctive 16 bolt oil pan pattern as shown on our site.
Lock Up Torque Converter
Our 700R4 lock up torque converter is included with every transmission. The lockup is a technological advancement that allows absolutely zero slippage when the transmission enters 4th gear. This upgrade lowers engine RPM's and temp. Your 700R4 transmission will also experience a reduction in thermal viscosity and wear. In addition the lockup will make a noticeable improvement with your vehicles fuel economy.
There have been many reports of issues with this transmissions factory supplied governor. The most common of these governor problems is that the internal gears had a tendency to stick and the springs were notorious for popping out of place. We have upgraded both the gears and springs to solve these long standing issues.
Shift Kit & 3-4 Clutches
Our performance 3-4 clutches and shift kit modify the holding pressure of the clutch pack. This helps prevent 700R4 clutch pack loss during operation.
Seals And Gaskets
Leaking fluids is always a serious problem with transmissions the the 4L60 is no exception in fact they are notorious for hemorrhaging oils after extended use. Our seal and gaskets have been upgraded to the latest in molecularly bonded materials. They are rated and tested for their ability to withhold the maximum pressure the 700R4 transmission can build.
Common Transmission Names
- Astro Van
- S10 Pickup
- S10 Blazer
- S15 Pickup
- Lockup Torque converter included (High Stall Optional)
- Valve Body
- 3-4 Clutches
- Seal & Gasket
- Shift Improver Kit
- Clutch Disks