{"product_id":"jeep-jl-392-8hp75-to-atlas-50-9903","title":"JL 392\/4xE 8HP75 to Atlas Adapter - 50-9903","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe Advance Adapters JL 392 8HP75 to Atlas kit (SKU 50-9903) is built for the Jeep Wrangler 392 and 4xE Hybrid, both of which run an 8HP75 or 8HP75PH transmission with a 43-spline output shaft and a full-time transfer case setup. This adapter couples to that transmission and steps the output down to a 23-spline input, which is what's needed to bolt on an Atlas transfer case. The same kit works on the 4xE Hybrid despite its part-time transfer case, since the transmission-side interface is the same.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eJeep and Ram have run several variations of the 8HP series transmission — different spline counts, shaft lengths, and bolt patterns depending on application — so getting the right adapter for your specific drivetrain matters. This kit is specced for the 392\/4xE HEMI application.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eOne detail worth flagging directly from the listing: it names verified DTCM (Drivetrain Control Module) part numbers confirmed to work with this adapter, by model year — 2021 (68483374AC), 2022 and 2023 (both 68547691AA), and 2024 (68534759AE). Cross-checking your Jeep's DTCM part number against this list before ordering is a good way to avoid a compatibility surprise.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eWhat's included:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"ltr\" class=\"[li_\u0026amp;]:mb-0 [li_\u0026amp;]:mt-1 [li_\u0026amp;]:gap-1 [\u0026amp;:not(:last-child)_ul]:pb-1 [\u0026amp;:not(:last-child)_ol]:pb-1 list-disc flex flex-col gap-1 pl-8 mb-3 print:block print:space-y-1\"\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAdapter Plate, 8HP75 to 392 HEMI (51-9903)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSupport Mount, 8HP75 2021 JL 392 HEMI (51-9903A)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eShaft, JP 43F x JP 23M, 7.5\" OAL (52-9903)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSealed Bearing 209RS (716308)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eSnap Ring, T350\/T400 (716450)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eTrue Arc Snap Ring (716456)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eAdapter, 392\/ZF 8HP75 4x4 Extension Housing (51-9903C)\u003c\/li\u003e\n\u003cli class=\"font-claude-response-body whitespace-normal break-words pl-2\"\u003eHardware: SHCS M10-1.5 x 30mm Class 12.9 (720075), HHF M10-1.5 x 16mm Class 10.9 (720070), SHCS M10-1.5 x 25mm Class 12.9 (720076), 10mm x 1.5 x 30mm FHHS 8.8 (720020), HHF M10-1.5 x 50mm Class 8.8 (720072), 10mm x 1.5 x 25mm FHCS (720067)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThis is the most complete kit in the Atlas-adapter lineup — it includes not just the shaft and bearing hardware but the full extension housing adapter and mounting hardware needed for the swap, since the 392\/4xE application requires more structural support than the standard 8HP70\/8HP95 kits.\u003c\/p\u003e","brand":"Advance Adapters","offers":[{"title":"Default Title","offer_id":44666286473282,"sku":"50-9903","price":879.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1476\/5984\/files\/0004588_jeep-jl-392-8hp75-to-atlas_625.png?v=1785623284","url":"https:\/\/www.skinnypedalracing.com\/products\/jeep-jl-392-8hp75-to-atlas-50-9903","provider":"Skinny Pedal Racing","version":"1.0","type":"link"}