"This is our strongest transmission offering to date. We start with only late model cores for our performance line and application based core for our heavy duty line (Heavy Hauler). Each of these units features all the latest upgrades and high quality materials for assembly. Below is the breakdown of the builds. Note the differences between the HD and Performance versions. The Heavy Duty line is available in both 2 and 4WD. The Performance and Heavy duty 4L80E.
The unit is disassembled, each part carefully inspected and clearances are measured to meet our specifications not just the maximum clearance allowed by GM.
The case is carefully inspected, cleaned and re-inspected. Then it is coated with a special heat and oil resistant paint making for a very tough finish and a clean look.
Bushings are replaced and sized as needed to performance specifications.
The intermediate clutch sprag consists of an extreme duty 34 element sprag and roller assembly with specially prepared race and spiral ring, to prevent high RPM snap ring release.
The Forward and Direct clutch frictions are replaced with heavy duty performance frictions. The drums are then modified to accept additional frictions and the apply area it self is altered to allow use of the entire piston area for apply in the forward drum. "Dished" cushion plates in these units are replaced with the TH400 style plates for additional reliability. These modifications will also result in a much firmer apply into gear from neutral/park to reverse/drive. But durability is significantly increased.
For the Intermediate, Direct and overdrive clutches we use the Raybestos Stage 1 Performance Frictions. These frictions exceed anything on the market for Performance Street/Strip and Heavy Duty applications and are more than suitable for any application.
The intermediate overrun band is replaced with a heavy duty unit. This is mostly valuable in heavy duty truck applications, since this band is used to hold back when the transmission is manually put into 2nd gear while descending steep grades, etc. It will hold up significantly better to engine braking.
The low sprag is replaced with a heavy duty type and the LOW/REVERSE band is replaced with either a Performance band, or a heavy duty band for our heavy hauler applications.
The Pump is carefully inspected and reconditioned for maximum durability and pressure. Special modifications are made to increase cooling and planetary lubrication.
Our own PerformaBuilt shift kit is installed in the valve body. This kit is custom set to the type of unit purchased. The Heavy Duty setup is for maximum hold with minimal "shift shock", while Performance units are set for a more aggressive race feel, while maintaining a progressive shift that increases in firmness as you add more throttle."
This sounds like a "blueprinted" stock build, with an aftermarket clutch material, and some minor mods made to the shift plate and/or pressure regulator for firmer shifts.
I don't see any reference to rollerizing any components, adding hydraulic capacity to the stock failure prone direct clutch, or other real improvement.
While I'm sure it's a good unit, unless they take care of the direct clutch hydraulics, it won't have a chance comparing to a Jake's Performance build.
There's is priced at $3295 with free shipping, a cooler, and cooler flush.
Our equivalent transmission with equal product is
Stage II using a late model core- $3250
Shipping is $150, cooler and flush is $75. $3475 for our 4L80E with rollerized rear thrust, forward hub, new boost valve, and a 6 month warranty no matter who's converter you use. Add a transbrake and see how much we can save you... We will price match Performabuilt and if you can use an early style core we will save you money.
This transmission has automatic shifts and a heavy duty lock-up torque converter. Starting with one of the strongest transmissions on the planet we added a Transgo stage two shift kit. Rated up to 700 horse power with the Red clutch and torque converter upgrade. Every level one stock plus transmission is tested in our test truck. Now you can afford a pre-tested 4L80E transmission for only $2249.00. As an added bonus you can receive a $100.00 discount on a Compushift Electronic Control Module if you buy this package deal. This would bring the total price of the test driven 4L80E transmission, torque converter and electronic control module to $3348.00. This transmission will take the place of a 4L60E transmission with the use of #10X below (LS1 type computer only). For years now people have been looking for a way to replace the weaker 4L60E transmission with the stronger 4L80E transmission, well the time has come.
You can upgrade to all 5 sets of Red clutches for $159.00 making this a very strong transmission. If you have over 400 horse power you need the #L80-LU torque converter upgrade for $159.00. The freight will run from $110.00 to $175.00 in the lower 48 states. There is a core charge of $450.00 on 1996 back transmissions or $600.00 on 1997 up transmissions if you don't have a trade-in.
SUPER HEAVY DUTY 4L80E - Rated up to 1200 HP !
DIRECT REPLACEMENT TRANSMISSION, VERY STREET FRIENDLY & RELIABLE. GREAT FOR DAILY DRIVING, WORKS EXCELLENT BEHIND FACTORY ENGINES!!!
• All new lip seals
• All new gaskets
• All new Teflon rings
• New filter
• TCC Sonnax update sleeve and valve to eliminate common 1870 code
• New TCC Solenoid
• All new steels
• All new bushings
• All new Raybestos Clutch Disks
• All new 34 element sprag with hardened outer intermediate race
• All new shift solenoids
• New Round Cam Direct Drum
• New Center Support
• New Sonnax Boost Valve
• All new wiring harness
• New EPC Solenoid
• New Pressure Manifold
THIS TRANSMISSION CAN HANDLE 1200 HP and can PULL A HOUSE DOWN!!!
This MAD DOG TRANSMISSION is designed for lots of abuse, excellent for RACING or TOWING heavy weight. This transmissions will not take away any horsepower from your engine. As a matter of fact, this transmission will deliver more rear wheel horsepower than the factory 4L80E!! The reason being is that we run roller bearings instead of thrust washers which drag inside the transmission and create more heat. The most common problem on the 4L80E is loosing reverse and 3rd gear due to the aluminum pressure regulator valve binding up and sticking at wide open pressure. We put a steel pressure regulator valve to eliminate that common problem. Another common problem is damaged accumulator bores. We use the updated Sonnax sleeve and piston to eliminate that problem. Over 26 years of building experience is put into each transmission to ensure that the pressure and clearances are to specifications.
It will come with a Full Manual Valve Body that will eliminate the on-board computer. This package includes transmission with free shipping in the United States.
NOTE: Let us know what type of shift you want. We can custom build each valve body for your application.
I see a "blueprinted" stock build, likely using a TransGo HD-3 kit for full manual control, and a decent parts list. However I don't see the billet input shaft, forward hub, and intermediate shaft that we install for our "1200 HP" capable builds. I've personally seen the stock inputs fail with less than 800 HP, so I would highly discourage using one at 1200 HP/TQ, but I guess some feel they can overcome the OEM materials with marketing. So we'll match this build with our Stage II.
No mention of warranty.
$2750 with shipping included for the Mad Dog 4L80E.
Our equivalent trans is $2550 (full manual control), plus shipping. $2700 total.
Do you really believe it's good for 1200 HP without any hard parts improvements? The 4L80E is a rugged transmission but the input shaft is doomed at 1200 HP in our experience.
Want a comparison vs. your favorite transmission company? Email the build list or call us. We'll tell you what we think.