Juggernaut 875HP – Allison 1000 Transmission | Built By Inglewood Transmission

Juggernaut 875HP – Allison 1000 Transmission | Built By Inglewood Transmission

The Juggernaut 875HP bridges the gap between our Juggernaut Jr and the full-race version of the Juggernaut. After over 20 years of building performance Allison transmissions, we know exactly what works best for each and every application. When it comes to knowing the ins and outs of building Allison 1000 and 2000 series transmissions to hold more power and tow better, we are at the top of the list. You get all of the knowledge we’ve learned at the race track combined with the millions of miles our transmissions have traveled in hard-working trucks all over the country and beyond combined in one build. The Juggernaut 850 Allison 1000 can still handle everything you ask of it, just like the Juggernaut Jr, but with increased holding capacity by way of a billet input shaft, billet output shaft, and billet c2 hub. This transmission is perfect for the stock engine guys living on the ragged edge and the mildly built motor guys that are making too much power for the Juggernaut Jr. Be sure when comparing 850-900 horsepower builds you know what you are getting. There a many 900HP builds not including a billet input/output and c2 hub (yet they are priced higher). For a 01-10 truck making a true 850-900 horsepower, a build not including a billet input/output and c2 hub is nothing more than an overpriced 750hp build waiting to break a shaft or strip/snap off the c2 hub and planetary snout. 2011 and up output shafts can easily handle 850-900hp as they are considerably larger than pre-2011 models.

Converter choice can be a daunting task, but we can spec exactly what you need. If the information below doesn’t answer your question, don’t hesitate to message in the website chat or text/call 714-844-6611. PLEASE NOTE: Stall is not the amount of RPM the converter takes to begin fluid coupling (transferring power from the engine to the transmission) that’s how they are rated they are rated in the gas world, and it confuses many customers. In the diesel world, it’s the rpm the truck will stall to before pushing through the brakes when at a stop. The flash stall also comes into play, which is the rpm the converter will reach when stabbing the throttle at cruising speeds before fluid coupling efficiency increases. This flash helps to spool the turbo. Generally, the looser the stall, the more the flash.

Stock turbo and stock turbo/s475 compounds who only tow with no “spirited” driving will want a Goerend DK or a Suncoast 1077. If you do like to play still, the Goerend R or DL and Suncoast 1078 will work great and give you a little more RPM to play with.

Stock turbo up to 68 mm vvt will want a 1078 or Goerend R or DL. Even if they tow, those converters will work great. All are in the 2100-2300 stall range. 1078 and R converters both have a medium-duty pump in the converter (from the larger Kodiak trucks). This pump was designed for to be more aggressive at slinging fluid at the turbine to get the bigger heavier trucks moving. Because of this, when used in a 3/4 ton truck, the fluid coupling is very efficient compared to other torque converters that do not utilize it. Suncoast’s 1077 and the entire seven series line also utilize this pump, as does Goerend’s K converter. Suncoast 1055-2 and Goerend K converters can also work great in this application if someone likes a little looser sportier feel.

For large vvt and s300 single chargers/medium compounds, Suncoast 1055-2 and Goerend’s K converter works great no matter your driving style. The Goerend J is also an option for those wanting more RPM and a sportier feel.

For large single s400 and larger singles or large compounds Goerends J and AR work great. Goerend has bolt-together torque converter options that work out great for the DIY’er wanting to do your own changes and refreshes.

Any truck using a Goerend converter making over 800hp will want to use the extreme clutch option Goerend offers. Suncoast converters do not need this option as they are good to go as they come.

There will always be special applications, and custom stall torque converters are an option. Contact us if you want something spec’d just for you message us in the website chat or text/call 714-844-6611

Availability: For local customers or customers wanting to have the installation done at Inglewood Transmission, it is $900 and we offer SAME-DAY turnaround times to have your current transmission built. All you have to do is call or text 714-844-6611 and schedule an appointment and be here by 9:00 a.m, and you’ll drive home the same day with your new built transmission. The installation process includes hot flush, fluid, and transmission relearn.


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Inglewood Built Transmission Includes

– Track/Street proven clutch clearance and layout

– Mixture of Raybestos and Alto Clutches

– 2011+ (LML) apply pistons & return springs

– New Bearings, Bushings, Seals, Gaskets, filters

– Internal harness fix

– C1-C5 clutches ( These are the only clutch packs in all Allison 5 & 6-speed models)

– RatioTek pressure spring/shift valve springs

– Upgraded proprietary trim valve springs

– Modified TransGo Shift Kit

– Custom fluid circuits

– Billet input shaft

– Billet output shaft

– Billet C2 Hub/Machined sun gear

– Internal C3 oiling modification

– PPE deep pan

– Fixes P0700, P0762, P0735, P0776, P0777 diagnostic codes


Inglewood Transmission warrants components against defects in our workmanship and materials used in accordance with the terms and limitations below:

– The torque converter will only be warranted by the original manufacturer (Suncoast,Goerend, BD, etc.) and NOT by Inglewood Transmission.

– All claims related to defects in the torque converter shall be made directly with the product manufacturer and not with Inglewood Transmission.

– Inglewood Transmission does not warranty any failures due to or related to broken, sheared, fractured shafts, hard parts and/or cases; or any damage caused by broken shafts, hard parts, or cases.

– Inglewood transmission will not warranty any main cases, extension housings or bellhousings that have cracked or have been compromised if the damage is determined to be caused by the driveline.

– Inglewood Transmission will not warranty damage to Stock Enhanced, 525 or 750 horsepower transmissions if that damage was caused by exceeding the power capacity of that particular transmission (overpowering).

– Inglewood Transmission will not warranty any damages resulting from improper installation, negligence, alterations, accidents or improper use.

– If the vehicle’s transmission lines and transmission cooler were not hot flushed or replaced (including the radiator) prior to installation of the new unit it will not be covered under Inglewood Transmissions warranty.

– Inglewood Transmission will not provide warranty repair or service to any owner without properly documented maintenance records (provided by a qualified automotive service technician) that show all of the following:

1. Maintenance was performed at Inglewood Transmissions’s recommended intervals 0f 6000-10,000 miles using a Allison manufactured external filter (Spin on)

2. A internal filter (sump filter) and fluid change was performed at Inglewood transmission’s recommended interval of every 30,000 miles utilizing Allison components and recommended fluid. DEX 3 TranSynd, Cam 2 Synthetic, QuatraSyn, Royal Purple MAX, Schaeffer’s All-Trans. If a fluid to use is in question contact us at 714-844-6611

WARRANTY LIMITED TO REPAIR Inglewood Transmissions liability under this warranty is solely limited to repair or replacement of defective parts and/or workmanship. Inglewood Transmission shall not be liable for any incidental, special, or consequential, or punitive damages. 50% of freight cost and subsequent removal and reinstall labor charges not conducted inside Inglewood Transmissions facility are the consumers’ liability.

TRANSFER OF WARRANTY – This warranty is made to the original purchaser of the transmission and is tied to the VIN provided at time of purchase. The warranty may be transferred by the original purchaser if all of the following conditions are met:

– The new owner contacts Inglewood Transmission and makes a formal request to transfer the warranty;

– The request to transfer the warranty must be made within thirty (30) days of transfer of title of the vehicle. Proof will be required.

– Evidence of proper maintenance as set forth above is provided

– The payment of $500 to Inglewood upon satisfaction of all of the above, Inglewood transmission will issue a new warranty to the transferee, under the same terms and conditions as the previous owner.

HOW TO GET WARRANTY SERVICE If you need warranty service, please contact us at 714-844-6611 or email us at Sales@Inglewoodtransmission.com. You will need to provide us with the original invoice number, date of purchase, and reason for warranty claim. You are responsible for any expedited shipping if requested, and all risk of damage.


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PPEI, also known as Power Performance Enterprises, Inc., is led by the business owner and lead calibrator/tuner Kory Willis. PPEI began calibrating/tuning back in 2008, specializing in Diesel Performance but has since expanded into the Gas and Powersports industries. Kory and the team at PPEI have set many world records along with continuing many industry “firsts”. We take pride in knowing that Kory not only prides his work, but also thoroughly enjoys setting expectations high for our team so our customers can have the best products available in the world.