We specialize in building the 4L80E for retrofit applications. Our valve body hydraulics have proven themselves repeatedly and our transbrakes have set the standard for release time. We have established ourselves in the industry with our exclusive innovative 4L80E valve body designs whether we use our in house recalibration kit, or one of our transbrakes, you are getting what no other company in the industry has. They include all new friction clutches, bands, steel plates, soft parts, filter, modulator (if applicable), as well as hydraulic upgrades, bearings added at several thrust locations, and other modifications depending on power level. Look for some innovative new products in the near future that should make the 4L80E even stronger.Īs with all Jake’s Performance transmissions they start with a select core that is disassembled, the case is hot tanked, pressure washed, inspected, painted and prepped for reassembly. Most of our development time is spent on the 4L80E. The 4L80E has proven reliable like it’s predecessor. We have built them for applications ranging from heavy towing vehicles to 1800+ HP street/strip cars. At Jake’s Performance the 4L80E is our most popular transmission. It shares many components and design features. The 4L80E is the descendant of the “Ole Reliable” TH400 transmission. If this makes sense to you, take a look at our 4L80E options below. We just want to be sure you get the strongest option available at the best price the first time. Other builders are afraid to cut into their sales and tell you this. We specialize in 4L80Es because we KNOW it is the only real option for REAL power with reliability. But there is more demand for 4L80s, so business wise, it makes sense to pursue that market. We could build and sell a very well built 4L60E that would compete with anybody’s on the market. The most common simple DIY 4l80e upgrades that can be done with simple hand tools in your driveway without removing the transmission to tear apart are definitely transmission coolers, pans, and thermostat bypass.Have you broken a Level II, V, or MXXVII 4L60E that is supposedly 700 HP capable with 450 HP? Multiple times? Have you ever read a build list for a 4L60E/65/70 and wondered why it sounded like everything in the trans was replaced for a performance build? That is because it’s the wrong unit to use in a big power application. When it comes to upgrading your 4l80e, besides adding better internals and hard parts, there are a few simple upgrades that you can make to keep transmission temps down. It’s not the biggest issue, but typically best practice to torque (or use your better judgement) in a somewhat consistent sequence. In addition, it’s best to tighten the bolts in a cross pattern to prevent over-tightening on one side of the pan over the other. The correct torque spec for the 4l80e transmission pan bolts is 100 – 120 inch pounds. When reinstalling the transmission pan on your 4l80e, be sure to not over tighten the pan bolts. How many quarts does it take to do a fluid and filter change on a 4l80e trans? For a typical pan drop and fluid change, you will need about 5-7 quarts to do the job.Īs always, start with adding a few quarts of atf when you have the new filter and pan back on and shift through the gears to get fluid moving and warm, then keep checking and added until you have the right level. Get The Best Prices New & Used 4l80e Transmissions 4l80e Transmission SpecsĤl80e Transmission Fluid Type, Capacity & Specs However, many have used 4l80e transmissions from all years and have had plenty of success with longevity and reliability in extreme use cases. Is has often been debated all over the internet that a newer (99+) 4l80e is more capable than an older unit. When it comes to the 4l80e, not much is different in terms of years, but how its taken care of is more important. 1993–1997 Jaguar XJ12 / Daimler Double SixĪlthough the 4l80e is common in a lot of heavy duty vehicles, their strength, even in stock forms makes them a very sought out candidate for transmission swaps in high performance cars or trucks in drag race applications.1999–2006 Bentley Arnage Red Label / Bentley Arnage R/RL/T.1992–1998 Rolls-Royce Silver Spirit/Spur II, III, IV.2002–2006 Chevrolet Avalanche 2500 General Motors LS engine only.Here is the complete list of 4l80e equipped cars and trucks. The 4l80e transmission was found in a many heavy duty GM and high end luxury vehicles, such as Rolls Royce, Bentley, and Jaguar ranging from model years 1991 – 2013.
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