The name changed in 1990 to 4L60, while the most significant change came in 1993 when the electronically controlled transmissions were introduced. The transmission is rated for 450 hp, and takes all of the guesswork out of the swap. We lined up the dowel pins and slid the transmission against the engine. Call us at 800-216-1632 for your , , and needs! While in this area, we can disconnect the vacuum line from the modulator valve, then we can move forward to disconnect the transmission fluid lines. How it works: gears are multipliers of torque and our ratio splitting capability allows you to shift to a gear with more mechanical advantage than the next stock gear in automatic transmissions and wide ratio manuals.
The lock-up torque converter will keep the 2,800-stall converter from slipping while cruising in overdrive. Our overdrive kits are very complete and are designed for your specific vehicle. I have not personally seen this 3 speed yet, but here is picture of it. Construction The 700R4 case is a single piece constructed of cast aluminum. After some studying and price checking, we called up the folks at Phoenix Transmission Products in Weatherford, Texas. Your hub for horsepower Get first access to hit shows like Roadkill and Dirt Every Day Join free for 14 days now We were faced with a couple of options.
If you take a few moments to study the gear chart for your transmission and rear end ratio combination you will see why this product is so popular. Installing the pressure sensor is next on our to-do list. Give our overdrive expert a call toll free 800-216-1632. At wide-open throttle in low gear, the engine seemed to bog, and it never came to life, even with close to 400 hp on tap. Identification begins by visually identifying the units as Saginaw, Muncie or Borg Warner models and then by differentiating the three Muncie units visually and by decoding the serial number. While it does have massive humps for exhaust clearance, our particular truck needed some modifications to the exhaust for proper fitment. This transmission had a lower first gear ratio, which was good for performance at low vehicle speeds, while the 30% overdrive provided significant fuel economy improvement.
Call our Overdrive Expert Today and get Free Shipping at 800-216-1632! The sensor threads into the driver side of the transmission case, with a little bit of Teflon pipe tape on the threads. Our transbrake option can be built as a full manual unit or as an automatic unit with full automatic shifting capabilities when coupled with one of our electronic controllers. These Muncies have the same serial number format, minus the gear ratio designation, so a spline and gear tooth count must be done. So both electronic and non-electronic automatic transmissions gain a group of features including a passing gear or climbing gear that is automatically available without driver intervention and is at the split between 2nd and 3rd where you really want it. Saginaw and Borg Warner models are normally used on general purpose applications. Our 1971 Chevrolet C10 pickup was showing signs of concern, and eventually lost forward motion when something let go in the transmission.
When the transmission was renamed to 4L60 in 1990, this naming convention provided a number of key characteristics about this transmission. I wasn't aware that you could do such a conversion. Now we can simply plug in the wiring harness. Building a muscle car or street rod? This was essentially the end of the 700R4, or 4L60, as we knew it. Overdrive is the first reason you are going to add the Gear Vendors.
We did make use of a low-profile transmission jack, which made easy work of lifting the 700-R4 transmission into place. With our Auto-Launch circuit on you will leave the line in 1st and as the engine gains revs it will automatically shift clutchless to 1st-overdrive. The six bolts that hold the transmission to the engine usually require the use of a couple extensions and a swivel extension to have enough room to spin the ratchet. The truth of the matter is that we wanted to upgrade to an overdrive transmission either way, and this breakage gave us the perfect opportunity to make it happen. Muncie transmissions are known for both high-performance and heavy-duty applications, with three different variations available: the M20, M21 and M22. Next, we attach the torque converter to the flexplate with three new torque converter bolts. Now we can go for a testdrive and adjust the default settings if needed.
It can be removed at the rear end, by loosening the four bolts that keep the U-joint in place. The transmission holds a total of approximately 11 quarts of transmission fluid. Then, we can slide the cable end back as far as it can go, and tighten the small Allen-head set screw. Replaces tailhousing using 2-piece adapter. The toughest built best performing you can buy is the Gear Vendors overdrive from Drivetrain Specialist.
The speed sensor connects to the transmission speedometer drive with a 1-foot speedometer cable. Our entry level controller is manufactured by Powertrain Control Solutions and features rotary knobs with detents that allows you to quickly and easily adjust the controller for shift firmness, shift timing, and lock-up function to suit your specific driving style. For the purposes of this article, the focus will be pre-electronic control. This transmission was also used in the Chevrolet Camaro, Corvette, Impala, and many others. In older vacuum or throttle linkage transmissions the stock governor on the output shaft instantly slows down the moment the overdrive shifts and so automatically moves the shift point in any overdrive gear up by the correct 28. What we quickly realized was that the transmission was causing the bogging issues before it gave up. With the bottom side buttoned up, we can make the necessary changes to the exhaust system and prepare for a new driveshaft.