https://www.the4l80eguy.com/home daily 1.0 2025-07-17 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/836525ae-3eb6-4502-9a24-88f369606bd1/unnamed-4.jpg Home - Howdy!, I’m Truckdoug, aka “the 4L80e guy” I build 4L80e’s and Turbo 400’s for high performance vehicles. I offer custom and stock options for a range of budgets and applications. Not sure what you need? I’m happy to discuss your situation and offer my recommendation. https://www.the4l80eguy.com/transmissions daily 0.75 2026-02-11 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/5a695f5f-4d4d-48a8-87ba-499d50b87d37/sfibell.jpeg Transmissions - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.the4l80eguy.com/about daily 0.75 2025-11-13 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/90fee8ec-8a45-44c4-bedd-7aa249b17398/unnamed-1.jpg About https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/68705d5c-5746-43a7-bf45-41fad5df7b92/PXL_20220409_192413896.MP.jpg About https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/497951bb-621d-4bae-a409-5d8816395d06/PXL_20220409_192416497.MP.jpg About https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/defc558f-43d8-4115-ab98-4d8346a627c1/PXL_20220409_192331034.MP.jpg About https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/335e2cb9-d40e-41c0-bc31-8aac13080d06/PXL_20220409_192425487.jpg About https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/a617923e-1f50-48a4-a377-12fceb7913a0/PXL_20220410_002240867.MP.jpg About https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/c2d2c598-0c34-49d8-b90f-2b4cddd0ac0e/4.jpg https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/2a36a739-e927-4bcc-940a-0ba3e309b631/unnamed-1+copy.jpg https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/580821f4-31a7-43de-8d03-ace8bc61b7f5/PXL_20220423_000406932.jpg About - The Brown Bomber did it! After two seasons battling fuel delivery issues it finally ran the 9.xx pass I coveted. I have sold the car and it’s new owner continues to enjoy it as a fun and fast street car and doing drag and drive events with children in tow! My most recent upgrade has been to develop an oil pick-up with the filter at the rear of the pan so as not to starve the transmission on hard launches. https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/ec3b51aa-7b2d-4048-91dc-30d2dd2eaf96/unnamed-4.jpg https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/e33619c6-110d-46b5-8425-cde7c3a1f4c1/unnamed-2.jpg https://www.the4l80eguy.com/contact daily 0.75 2026-02-15 https://www.the4l80eguy.com/parts daily 0.75 2022-04-30 https://www.the4l80eguy.com/tools daily 0.75 2022-04-30 https://www.the4l80eguy.com/products-1 daily 0.75 2025-10-11 https://www.the4l80eguy.com/products-1/parts monthly 0.5 2025-08-28 https://www.the4l80eguy.com/products-1/service monthly 0.5 2024-09-04 https://www.the4l80eguy.com/products-1/tools monthly 0.5 2024-07-27 https://www.the4l80eguy.com/products-1/transmissions monthly 0.5 2024-10-01 https://www.the4l80eguy.com/products-1/p/hydra-matic-4l80-e-technicians-guide-v1 monthly 0.5 2025-11-13 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/5c55656e-90ed-4d45-8e79-e1b6019217ab/unnamed.jpg Products - HYDRA-MATIC 4L80-E TECHNICIAN'S GUIDE V1 - unnamed.jpg https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/f58ab242-19b7-4a24-ad65-1c3e0db048c2/unnamed-2.jpg Products - HYDRA-MATIC 4L80-E TECHNICIAN'S GUIDE V1 - unnamed-2.jpg https://www.the4l80eguy.com/products-1/p/fi-new-power-roller-bearing-tailhousings-assembly monthly 0.5 2025-11-25 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/3beb908b-c363-475f-a69e-3288925d5a80/unnamed.jpg Products - FI New Power roller bearing tailhousings assembly https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/23074b94-eebe-4559-8746-bdca69a28cc1/unnamed-1.jpg Products - FI New Power roller bearing tailhousings assembly https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/ebf73e76-f31e-4d9b-92bd-56855d966281/unnamed-2.jpg Products - FI New Power roller bearing tailhousings assembly https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/d011f703-cc3d-4260-8f0c-d19e5d595009/unnamed-3.jpg Products - FI New Power roller bearing tailhousings assembly https://www.the4l80eguy.com/products-1/p/sfi-certified-ls-6-bolt-to-th4004l80e-flexplate monthly 0.5 2026-03-03 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/29798c46-64ad-4f38-9f16-0990301fc168/unnamed.jpg Products - SFI certified LS 6 bolt crank to TH400/4L80e flexplate. https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/ba801ca6-135f-42ec-a633-b207cf723973/36052.jpg Products - SFI certified LS 6 bolt crank to TH400/4L80e flexplate. https://www.the4l80eguy.com/products-1/p/nvnp149-duramaxed-awd-big-power-transfercase monthly 0.5 2026-03-16 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1e84e48b-e100-4217-a935-447bae8735bb/unnamed-2.jpg Products - nv/np149 "duramaxed" AWD big power transfercase https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/c43622f8-87b9-46a0-9cad-6c69eff8db52/unnamed.jpg Products - nv/np149 "duramaxed" AWD big power transfercase https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/20e8b070-689c-40f4-976a-59802ad6c283/unnamed-1.jpg Products - nv/np149 "duramaxed" AWD big power transfercase https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/c011084e-123b-4875-aed6-62b76b79ce9e/input.jpg Products - nv/np149 "duramaxed" AWD big power transfercase https://www.the4l80eguy.com/products-1/p/new-pump-body-machined-for-sfi-bell monthly 0.5 2026-03-16 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/b2095d31-5c13-4e20-a1cd-09dfed2f99ab/unnamed.jpg Products - New Pump Body Machined for SFI Bell - unnamed.jpg https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/e5fe36e4-511b-4625-8806-eca30f437705/unnamed-1.jpg Products - New Pump Body Machined for SFI Bell - unnamed-1.jpg https://www.the4l80eguy.com/products-1/p/fi-new-power-4l80e-direct-mount-sfi-bellhousing monthly 0.5 2026-02-08 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/5421977e-840a-4069-9de6-685f2c4337cd/unnamed-2+copy+6.jpg Products - FI New Power 4L80e LS/LT & BOPC pattern direct mount SFI bellhousing https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/ad7f87c6-76ce-48f2-afaa-063b1a6f59a7/unnamed-3.jpg Products - FI New Power 4L80e LS/LT & BOPC pattern direct mount SFI bellhousing https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/93421107-ffde-4124-84ef-08fd3ffb4351/unnamed-4.jpg Products - FI New Power 4L80e LS/LT & BOPC pattern direct mount SFI bellhousing https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/78bb9434-bec2-497b-903d-af1d6658acdb/unnamed-5.jpg Products - FI New Power 4L80e LS/LT & BOPC pattern direct mount SFI bellhousing https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/884a1687-fb95-4416-ba47-a9c5c915cb85/unnamed.jpg Products - FI New Power 4L80e LS/LT & BOPC pattern direct mount SFI bellhousing https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/8e169924-3d67-4535-8ca8-eb8ef8b299c4/unnamed-1.jpg Products - FI New Power 4L80e LS/LT & BOPC pattern direct mount SFI bellhousing https://www.the4l80eguy.com/products-1/p/4130-billet-forward-clutch-hub-rollerized monthly 0.5 2025-09-29 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/7d47e235-c828-4622-b5c0-f3e2a1dd61bc/unnamed.jpg Products - 4130 billet forward clutch hub (rollerized) https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/d724541a-bed5-4d63-b3f4-3e73d1b657e0/unnamed-1.jpg Products - 4130 billet forward clutch hub (rollerized) https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/635d9fdd-ba21-4382-b70f-0a936888685b/unnamed-2.jpg Products - 4130 billet forward clutch hub (rollerized) https://www.the4l80eguy.com/products-1/p/4l80e-d3-automatic-transbrake-valvebody monthly 0.5 2026-03-16 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/da727eda-2f95-4c59-ac06-0213edceee3c/unnamed.jpg Products - 4L80e D3 automatic transbrake valvebody https://www.the4l80eguy.com/products-1/p/truckdougs-hd-z-4l80e-upgrade-kit monthly 0.5 2026-03-19 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/a3e5ed61-7cd3-4ea7-8c0c-45f5d1620105/unnamed-2.jpg Products - Truckdoug's HD-Z 4L80e upgrade kit https://www.the4l80eguy.com/products-1/p/1000-deposit-on-transmission-to-reserve-a-spot-in-the-build-queue monthly 0.5 2025-09-29 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/b5c8d072-5f57-46ee-9c29-460f4321700f/doug+1.png Products - $1000 deposit on transmission to reserve a spot in the build queue https://www.the4l80eguy.com/products-1/p/machine-4l80e-pump-body-for-sfiadapter-bellhousing monthly 0.5 2025-04-19 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/e0d7c1d3-7e72-484c-8d67-89fb688aaf19/milledpump.jpg Products - Machine 4L80e Pump Body for SFI/Adapter Bellhousing https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/4f3d8595-7e40-49b2-8ad3-d518b7872b07/adapterring.jpg Products - Machine 4L80e Pump Body for SFI/Adapter Bellhousing https://www.the4l80eguy.com/products-1/p/machine-case-for-sfiadapter-bellhousing monthly 0.5 2025-04-19 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/64cfc543-f4c8-49d0-bc8b-aeeb12c79caf/milledcase1.jpg Products - Machine Case for SFI/adapter Bellhousing https://www.the4l80eguy.com/products-1/p/3rd-4th-gear-accumulator-delete monthly 0.5 2025-09-29 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1711785684714-34ZJDQGO35XDQ3KRW6RU/PXL_20240330_074530627.jpg Products - 3rd & 4th gear accumulator delete https://www.the4l80eguy.com/products-1/p/hd-intermediate-spring-retainer monthly 0.5 2025-09-29 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1711785612469-5ZNYZLIY8UIZ3CYQIUJN/PXL_20240330_074506355.jpg Products - HD intermediate spring retainer https://www.the4l80eguy.com/products-1/p/hd-separator-plate monthly 0.5 2025-09-29 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1711785432302-H5F2T4JHPSOIJRPUXO1S/PXL_20240330_074332558.jpg Products - HD separator plate https://www.the4l80eguy.com/products-1/p/4l80e-pump-wear-plate monthly 0.5 2025-09-29 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1711783413535-R3TIA9V9RLYW9MOEN7YC/PXL_20230527_210618402.jpg Products - 4L80e pump wear plate https://www.the4l80eguy.com/products-1/p/750-horsepower-capable-4l80e-transmission monthly 0.5 2026-02-11 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1652926442484-JLPG15YZZA75YY26ZNG7/baseunit.jpeg Products - 750 horsepower capable 4L80e transmission https://www.the4l80eguy.com/products-1/p/4l80e-milled-case monthly 0.5 2025-10-11 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1651707210798-Y69GQOQYSPKGMP35V1LV/milledcase1.jpeg Products - 4L80e case milled for SFI bell https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1651707268945-U8R0G3DF4IQU60KLAICY/sfibell.jpeg Products - 4L80e case milled for SFI bell https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1651707276235-JWU0OW5EM6T6VDMU2OF3/reidbell.jpeg Products - 4L80e case milled for SFI bell https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/723c45a3-bb9d-46f2-b514-12b289f7e83d/unnamed.jpg Products - 4L80e case milled for SFI bell - unnamed.jpg https://www.the4l80eguy.com/products-1/p/4l80e-transmission-engine-stand-adapter monthly 0.5 2025-10-04 https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1651706400889-2HNYOPNJJ8NA6XSTX6UU/transmission+holder.jpeg Products - 4L80e Transmission Engine Stand Adapter https://images.squarespace-cdn.com/content/v1/623a8eed7409582373d85878/1651706413347-E93I073MK2KCMJVNFPCA/adapter.jpeg Products - 4L80e Transmission Engine Stand Adapter