{"product_id":"rx8-8-8-irs-complete-mount-kit-w-grande-axles-hubs-uses-ford-inner-outer-cvs","title":"RX8 8.8 - Complete IRS Kit w\/ Grande Axles \u0026 Hubs (uses Ford Inner \u0026 Outer CVs)","description":"\u003cp\u003e\u003cmeta charset=\"UTF-8\"\u003e \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\u003c\/p\u003e\n\u003cstyle\u003e\n        body {\n            font-family: Arial, sans-serif;\n            line-height: 1.6;\n            color: #ffffff;\n        }\n    \u003c\/style\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cp\u003e\u003cstrong\u003eRX8 8.8 IRS, Complete Differential Mount Kit w\/ Grande Axles \u0026amp; Hubs (ABS optional)\u003c\/strong\u003e\u003cbr\u003eThe Grande version of our RX8 8.8 here-in is our strongest RX8 rear end offering.  This version requires no donor Mazda parts as both inner and outer CVs are from a Ford Explorer, with Ronin supplied custom hubs to match.\u003c\/p\u003e\n\u003cp\u003eWhy run Ford 8.8 diff? It's a powerhouse, substantially stronger than the factory Mazda rear end and is supported by wide range of gear ratios and LSDs. We specifically utilize parts from a 2006-2010 Ford Explorer for their strength, reliability, and availability.  Our kit maintains factory like exhaust clearances.  \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe RX8 8.8 Grande Complete Kit includes:\u003c\/strong\u003e\u003cbr\u003e•    Front Mount Support Bridge (weld in)\u003cbr\u003e•    Rear Mount Diff Cradle (bolt on)\u003cbr\u003e•    2x Grande Axle Shafts: 4340 heat-treated axle shafts, these feature Ford splines on both ends with each unique length tailored specifically to the RX8.\u003cbr\u003e•    2x EMPI CV boot kit 86-2273 (outer CV joints)\u003cbr\u003e•    2x EMPI CV boot kit 86-2215 (inner CV joints)\u003cbr\u003e•    2x CV spacers: ensure proper spacing between the Ford CV and the Mazda knuckle.\u003cbr\u003e•    2x RX8 Conversion Hubs: built from heat-treated 4340, these hubs utilize full-length splines for maximum engagement.  These hubs maintain the original offsets so your existing wheels and brakes all bolt up.\u003cbr\u003e•    Extended 2.5\" ARP wheel studs pre-installed (Mazda M12 thread pitch)\u003cbr\u003e•    2x new wheel bearings: High-end bearings (Timken, National, or Schaeffler) ensuring reliability and performance.\u003cbr\u003e•    2x Lower Pinion Isolators – up-rated isolators that supports the pinion from below\u003cbr\u003e•    All Mounting Hardware\u003cbr\u003e•    Instructions (hosted online)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOptional:\u003c\/strong\u003e\u003cbr\u003e•    2x billet ABS conversion tone rings.  These use the Ford tone ring landing positions but use both the RX8 tooth count and original tooth location to ensure compatibility with your existing ABS system.  Note, you'll need either donor Ford outer CVs that were ABS equipped or you can cut a corresponding ABS ring land into non-ABS Ford CVs.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsers Will Source Their Own:\u003c\/strong\u003e\u003cbr\u003e•    Ford 8.8\" Rear End (2006-2010 Ford Explorer), the complete center section that uses the dual front pinion support.  \u003cbr\u003e•    Ford 8.8\" inner and outer CV joints (from 2002-2010 Ford Explorer axles).  Note donor axles must be OEM, not aftermarket or OEM equivalent.  Typically this means sourcing used axles from a junkyard or eBay, not just the local parts store.  We recommend ABS equipped Ford axles if adding our conversion tone rings.\u003cbr\u003e•    A Driveshaft (install instructions include a variety of recommendations)\u003cbr\u003e•    Rx-8 rear diff isolators (user's choice of style but we like polyurethane)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eA few RX8 specific notes: \u003c\/strong\u003eThe Ronin 8.8 mounts intentionally spans the full lower surface of the Mazda subframe (not just certain points as a few competitor offerings do) in order to provide far less flex and therefore less wheel hop.  \u003c\/p\u003e\n\u003cp\u003eThere is a subframe difference between S1 (2003-2008) and S2 (2009-2012) RX8s.  The front upper crossbar on the S1 RX8 has an open bottom that the Ronin front mount nestles up into.  The S2 subframe is a box section, so users will trim down the Ronin provided front mount to weld to the lower surface of the subframe rather than it being nestled within.  \u003c\/p\u003e\n\u003cp\u003eThe dual front mount for the 2006-2020 Explorer is a stronger load path but the kit is compatible with an Explorer 2002-2005 single front mount diff if required.  The RX8 kit will eliminate the Mazda Power Plant Frame (PPF), so if you’re still running a Renesis a dedicated transmission mount will be required.  \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance and Durability\u003c\/strong\u003e\u003cbr\u003eHow much power will it hold?  We typically recommend the grande version for anyone making 600-1000 hp, as well as for all drag racers and drifters--regardless of power--given they're exceptionally hard on parts.  The shafts come with a warranty support program so if you do break one, we can get you a replacement at reduced cost (see \u003ca href=\"https:\/\/roninspeedworks.com\/pages\/axle-warranty-support\"\u003ehttps:\/\/roninspeedworks.com\/pages\/axle-warranty-support\u003c\/a\u003e for full details).\u003c\/p\u003e\n\u003cp\u003eMaximize your performance with the Ronin RX8 8.8 Grande Complete Kit\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"1162\" height=\"654\" src=\"https:\/\/www.youtube.com\/embed\/6AN57iVcLfM\" title=\"Ronin Speedworks: Mazda RX8 IRS Ford Explorer Based Differential Kit\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003ciframe width=\"1162\" height=\"654\" src=\"https:\/\/www.youtube.com\/embed\/1wk3fsvNyXA\" title=\"Ronin Speedworks: Grande Axle Upgrade (FC\/FD RX7, now RX8)\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Ronin Speedworks","offers":[{"title":"No Tone Rings - ABS will be disabled","offer_id":46617430819060,"sku":"RX88.8-GRDcomplete-noABS","price":2339.0,"currency_code":"USD","in_stock":true},{"title":"Include Tone Rings - maintain RX8 ABS","offer_id":46617430851828,"sku":"RX88.8-GRDcomplete-wABS","price":2639.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0642\/4395\/8004\/files\/RX8_8.8GrandeCompl_ABS_900x_773c4038-2667-4172-9738-c13919f95b29.jpg?v=1775550625","url":"https:\/\/roninspeedworks.com\/products\/rx8-8-8-irs-complete-mount-kit-w-grande-axles-hubs-uses-ford-inner-outer-cvs","provider":"Ronin Speedworks","version":"1.0","type":"link"}