{"product_id":"2jz-1jz-to-dodge-mopar-8hp50-8hp70-8hp90-conversion-kit-ase","title":"2JZ 1JZ to Dodge Mopar 8HP50 8HP70 8HP90 Conversion Kit | ASE","description":"\u003cp\u003eThis is a complete conversion kit for your JZ engine. Kit comprised of Billet Adapter plate, Billet Flex Plate to replace weak steel OEM JZ flex plate and a billet engine to transmission adapter plate.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eBillet 6061 Components\u003c\/li\u003e\n\u003cli\u003eBillet TQ Convertor Flex Plate\u003c\/li\u003e\n\u003cli\u003eBillet Motor Adapter Plate\u003c\/li\u003e\n\u003cli\u003eComplete Hardware Kit\u003c\/li\u003e\n\u003cli\u003ePilot Spud adapter\u003c\/li\u003e\n\u003cli\u003eHardened Steel Starter Ring Gear\u003c\/li\u003e\n\u003cli\u003ePrecision Dowel Pins for Proper Alignment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhich 8HP transmissions this kit covers\u003c\/h3\u003e\n\u003cp\u003eMopar \u003cstrong\u003ecar-platform 8HP50, 8HP70, 8HP75, 8HP90 and 8HP95\u003c\/strong\u003e. The older \u003cstrong\u003eDodge 8HP45 is not supported\u003c\/strong\u003e — it uses a different torque converter.\u003c\/p\u003e\n\u003cp\u003e(The \u003cem\u003eJaguar\u003c\/em\u003e 8HP45 is unrelated to the Dodge unit and is covered by ASE's Jaguar kit.)\u003c\/p\u003e\n\u003ch3\u003eCar platform, not truck\u003c\/h3\u003e\n\u003cp\u003eDodge\/Ram \u003cstrong\u003etruck\u003c\/strong\u003e 8HP units use a different kit, listed separately — check which you have before ordering.\u003c\/p\u003e\n\u003ch3\u003eConverter centering sleeve\u003c\/h3\u003e\n\u003cp\u003eThe billet flex plate uses an \u003cstrong\u003eadapter sleeve\u003c\/strong\u003e that drops into the center bore to reduce it, so one kit covers both Dodge converter diameters found across second and third generation transmissions. Remove the sleeve for the larger spud and the same plate handles it.\u003c\/p\u003e\n\u003cp\u003eTwo threaded holes accept 8-32 socket head bolts if you want the sleeve positively retained. The sleeve sits on a machined lip that keeps it elevated off the full surface, with three relief points — so if it ever seizes after heat and load cycling, a punch or screwdriver taps it straight back out.\u003c\/p\u003e\n\u003ch3\u003eYou will also need a TCU\u003c\/h3\u003e\n\u003cp\u003eThis kit is the \u003cstrong\u003emechanical\u003c\/strong\u003e adapter only. The 8HP will not shift without a standalone transmission controller, purchased separately.\u003c\/p\u003e\n\u003ch3\u003eWatch the full 8HP range overview\u003c\/h3\u003e\n\u003cdiv style=\"position:relative;padding-bottom:56.25%;height:0;overflow:hidden;margin-bottom:1.5rem;\"\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/O6mJEVMoxDs\" title=\"Everything You Need to Know About An 8HP Swap Kit\" style=\"position:absolute;top:0;left:0;width:100%;height:100%;\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen loading=\"lazy\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/news\/zf-8hp-swap-kits-complete-guide\"\u003eRead the complete 8HP swap kit guide →\u003c\/a\u003e\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"Which 8HP transmissions does this kit support?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Mopar car-platform 8HP50, 8HP70, 8HP75, 8HP90 and 8HP95.\"}},{\"@type\":\"Question\",\"name\":\"Is the Dodge 8HP45 supported?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. The older Dodge 8HP45 uses a different torque converter and no kit is offered for it. The Jaguar 8HP45 is a separate transmission and is covered by ASE's Jaguar kit.\"}},{\"@type\":\"Question\",\"name\":\"Is this the same as the Dodge Ram truck kit?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Truck 8HP units use a different kit which is listed separately. Confirm whether your transmission came from a car or a truck platform before ordering.\"}},{\"@type\":\"Question\",\"name\":\"How does one kit cover both Dodge converter diameters?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"An adapter sleeve drops into the center bore of the billet flex plate to reduce it, covering the smaller converter spud found across second and third generation Dodge transmissions. Remove the sleeve and the same plate accepts the larger spud. Two threaded holes accept 8-32 socket head bolts for positive retention, and the sleeve sits on a machined lip with three relief points so a punch can tap it back out if it ever seizes.\"}},{\"@type\":\"Question\",\"name\":\"Do I need a transmission controller as well?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. This kit is the mechanical adapter only. The 8HP is electronically controlled and needs a standalone TCU, purchased separately.\"}},{\"@type\":\"Question\",\"name\":\"Why does the kit include a billet flex plate?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It replaces the weak steel OEM JZ flex plate, which is a known failure point at the torque levels these conversions run.\"}},{\"@type\":\"Question\",\"name\":\"What is included?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Billet adapter plate, billet torque converter flex plate, billet motor adapter plate, pilot spud adapter, hardened steel starter ring gear, complete hardware and precision dowel pins.\"}}]}\u003c\/script\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"VideoObject\",\"name\":\"Everything You Need to Know About An 8HP Swap Kit\",\"description\":\"Autosports Engineering overview of the ZF 8HP conversion kit range — which transmission variants are covered across BMW, Dodge, Jaguar and EcoDiesel, which engines are supported, billet flex plates with integrated starter ring gears, hex-drive stainless dowel pins, converter centering sleeves and engraved torque specifications.\",\"thumbnailUrl\":\"https:\/\/i.ytimg.com\/vi\/O6mJEVMoxDs\/maxresdefault.jpg\",\"uploadDate\":\"2026-10-05T02:00:07Z\",\"duration\":\"PT17M14S\",\"embedUrl\":\"https:\/\/www.youtube.com\/embed\/O6mJEVMoxDs\",\"contentUrl\":\"https:\/\/www.youtube.com\/watch?v=O6mJEVMoxDs\",\"publisher\":{\"@type\":\"Organization\",\"name\":\"Autosports Engineering\"}}\u003c\/script\u003e","brand":"Autosports engineering","offers":[{"title":"Default Title","offer_id":49358407893175,"sku":"81004","price":1099.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/milkymotorsports.com\/products\/2jz-1jz-to-dodge-mopar-8hp50-8hp70-8hp90-conversion-kit-ase","provider":"Milky Motorsports","version":"1.0","type":"link"}