Product Description
SDP Built Allison 1000 Transmission with Billet Torque Converter
*Freight includes shipping BOTH ways and it must be a commercial address with a forklift or extra shipping charges may be applied.
This Allison 1000 is built in house to the highest of standards and includes a Goerend triple disc billet torque converter. All of our Allisons are built the same (clutch pack stackup) whether you're looking for a 1000+RWHP truck or you're looking for a reliable transmission for your 500HP daily driver. Our transmissions have been in several dozens of 1000+RWHP trucks with lots of abuse drag racing, dyno runs and sled pulling all on the same build for a full season. No matter your power level or what you do with the truck, we use the most robust clutch pack combinations possible, which is why we feel more than comfortable with being able to offer the lifetime warranty for an additional cost in sub 650rwhp applications. We set them up according to your predicted power level and we can add billet shafts/hub, C3 PTO oiling holes or a pan for the cost of parts. It is preferred to use your current transmission that is in your truck but we do have over 100 cores on the shelf which we can use to build one to order with specs for your truck and how you drive. Current lead time is 15-20 business days, please email orders@sdptwins.com to verify.
Features:
- Billet Goerend triple disc converter (billet stator options as well)
- Mix of Raybestos GPZ PRO clutches with thick steels and Alto Carbonite
- 2011+ Allision parts for quicker shifts
- Modified Converter flow valve in pump
- Ratiotek parts in pump and valve body
- Sonnex upgrades in pump and valve body
- Transgo Shift kit + reconditioned valve body
- Upgraded shift valve springs in valve body to give us even quicker, smoother shifts than before
- Added oiling holes to clutch packs
- New gaskets + filters w/ filterloc kit
- Billet C2 hub is required past 650rwhp or you risk damaging splines on the P2 planet
- Billet P2 planet is required above 800rwhp, recommended when doing a billet C2 hub
- Billet input and output are extra, required above 900rwhp
-Powder coating the unit is $565. If this option is selected, please tell us your color choice in the order comments.
We can have your transmission shipped to us to build, or build one of our cores to your specs and ship it to you. Contact us regarding shipping costs and times. Our fixed rate of $1075 is for round trip freight (to you and your core back to us is included) if going to a commercial address with a forklift. If you send your transmission to us on an open pallet, we charge $165 extra for the crate that it will be returned to you with, the transmission must be crated to have insurance on the shipment. The transmissions ship without the converter in them, they are drop shipped separately as to not put stress on the pump.
*We recommend that you add an aftermarket transmission cooler (do not use Mishimoto brand as major leaks from the soft hose/worm gear clamps are prone to leaking with trans failure) if you plan to tow heavy in higher temperature climates (factory or AN lines only, we do not approve of crimping soft hose to the factory hard line as it will blow off over time with the added pressure and cause failure).
*The transmission cooler and heat exchanger MUST be cleaned using a HotFlush machine, and the TCM must have the TAPS reset (in some cases, a new TCM may be required).
*The core must come back within 30 days in rebuild-able condition in order to qualify for the full core refund. This includes but not limited to; planetaries, pump housings, shafts, gears, housings etc. Please allow 10-15 business days for inspection before the core refund begins processing. $300 applies to the torque converter, $400 for the shipping crate, and $1,300 for the transmission itself.
*The Powdercoating option will add at least 2 weeks to the current build time. If you select a Goerend Pan and powder coating, the pan will be coated to match, the Mag-Hytec pan will be left in their standard black powder coated color unless otherwise discussed.
Custom Power coat Color Options- Here
Any expressed warranty is only valid if the install requirements are followed as specified, there is a sheet provided with the transmission, if it cannot be found upon arrival, please email us and we can email a copy. A warranty on our transmission does not include original factory hard parts if not opted to upgrade such as shafts, planetaries, stock C2 hub, stator in the converter (ex. C converter option) etc.
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Product Reviews
38 Reviews Hide Reviews Show Reviews
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Now a lifetime customer!
Awesome job on the transmission looks great and runs even better. Also a big shout out to Felicia and Scott for the excellent customer service.
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SDP transmission, Goerend R converter, best combo.
Couldn't ask for a better performing transmission, that's why I bought two of them. I have one in my LML and one in my LBZ. Putting down close to 700rwhp and 1200ft lbs of torque in my LML and it hasn't skipped a beat. Helped me dip into the 12s as well. Extremely happy with the transmissions that scott and John put together.
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Awesome trany easy to deal with
transmission looked great and performed great ordering was easy and shipping was fast thanks Guys and gals for all your hard work
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GAME CHANGER
I had a transmission from suncoast in my LB7... after this purchase I will buy SDP transmissions every time. Everything is so smooth, the TQ converter lockup is almost unnoticeable. Had it installed at SDP, got to watch these guys build 3 transmissions. The way these guys perfect the transmissions before they go out the door is almost an art. 10/10 every time!
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GM BUILT TRANSMISSION
WELL, SCOTT AND HIS GUYS DID IT AGAIN, THIS TRANS IS PERFECT. CLEAN, PERFECT SHIFT POINTS, WE CAN RUN IT ON THE TOP TUNE AND NOT WORRY ABOUT ISSUES. FANTASTIC, ONCE AGAIN. THANKS GUYS...
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built trans
Great guys/girls, loving the transmission
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Very pleased
Scott and John are great! Very good customer service and my transmission i couldn't ask for it to work any better. Everything I could of asked for thanks again guys and I will definitely be back and refer other to give them a try for any duramax needs
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Awsome Upgrade
This is the second transmission Scott has done for me (two different trucks) and I am very impressed! Not only does the transmission work flawlessly but scotts customer service is out standing! I am very happy with not only the transmission but the experience at SDP. Scott is very knowledgeable and knows these trucks inside and out! Also his mechanic John not only whipped out my build with an impressive turn around time but was very professional and attentive to my truck right up until I left. These guys have my business.. Gauranteed!!
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Awesome transmission!
Scott and John are awesome to deal with and stand behind their products. Have probably about 12k miles on my trans and it never misses a beat!