{"product_id":"cd009-bearing-spacer-rings-90mm-95mm-to-100mm","title":"CD009 JK Bearing Spacer Rings 90mm 95mm to 100mm | A340 | ASE","description":"\u003cp\u003eReduction rings for installing a smaller \u003cstrong\u003e90mm or 95mm bearing\u003c\/strong\u003e transmission onto the A340 cut-style adapter plates.\u003c\/p\u003e\n\u003ch3\u003eWhy you might need these\u003c\/h3\u003e\n\u003cp\u003eThe CD009 comes with one of \u003cstrong\u003ethree main input shaft bearings depending on year — 90mm, 95mm or 100mm\u003c\/strong\u003e. Every ASE adapter plate is cut for the 100mm, which is the largest and by far the most common.\u003c\/p\u003e\n\u003cp\u003eInstall a plate against a 90mm or 95mm bearing and there is visible play in the bore. The shaft moves radially inside that gap continuously, which causes noise, tears up the input shaft bearing, and \u003cstrong\u003eprematurely destroys the pilot bushing adapter\u003c\/strong\u003e — which is why destroyed adapters are so often blamed on the adapter rather than the real cause.\u003c\/p\u003e\n\u003cp\u003eThese rings close that gap. The \u003cstrong\u003ethinner ring converts a 95mm to 100mm\u003c\/strong\u003e, the \u003cstrong\u003ethicker ring converts a 90mm to 100mm\u003c\/strong\u003e. Precision laser cut, so they pop straight on and lock in with no fitting or shimming.\u003c\/p\u003e\n\u003ch3\u003eDo you already have these?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eBoth rings are included as standard with all current ASE CD009 kits\u003c\/strong\u003e, whether or not you need them at the time. Check your kit before ordering.\u003c\/p\u003e\n\u003cp\u003eThis listing exists for \u003cstrong\u003eolder CD009 kits that predate the feature\u003c\/strong\u003e, and for anyone who needs a replacement set.\u003c\/p\u003e\n\u003cp\u003eA note worth repeating for drifters: if your transmission is a 100mm and the rings came with your kit, \u003cstrong\u003eput them somewhere safe rather than discarding them\u003c\/strong\u003e. When a CD009 eventually fails the cheapest replacement is usually another used one, which may well have a 90mm or 95mm bearing.\u003c\/p\u003e\n\u003ch3\u003eHow to check which bearing you have\u003c\/h3\u003e\n\u003cp\u003eMeasure the outer diameter of the main input shaft bearing before installing the plate. 100mm and you are ready to go. 90mm or 95mm and you fit the matching ring first. Thirty seconds of measuring prevents a teardown.\u003c\/p\u003e\n\u003ch3\u003eFull explanation\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\/yGOi73ojIAY\" title=\"You Killed Your Pilot Bearing...Here Is The Fix\" 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\/cd009-bearing-sizes-why-your-pilot-bushing-failed\"\u003eRead the full write-up on CD009 bearing sizes →\u003c\/a\u003e\u003c\/p\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is this part for?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Reduction rings that let you install a smaller 90mm or 95mm bearing transmission onto A340 cut-style adapter plates.\"}},{\"@type\":\"Question\",\"name\":\"Do I need this if my transmission already matches the plate's bearing size?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No \\u2014 these rings are only needed when adapting a smaller 90mm\/95mm bearing transmission to the A340 cut-style plate; they're not required for 100mm bearing transmissions. They're included with all current adapter kits so you have them on hand for this install or a future one. This listing offers them separately for the older CD009 kits, which didn't originally include them.\"}},{\"@type\":\"Question\",\"name\":\"What bearing sizes does the CD009 use?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Three, depending on the year of the transmission: 90mm, 95mm and 100mm main input shaft bearings. The 100mm is the largest and most common, and is the size every ASE adapter plate is cut for by default.\"}},{\"@type\":\"Question\",\"name\":\"Which ring do I need?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"The thinner ring converts a 95mm bearing to 100mm and the thicker ring converts a 90mm bearing to 100mm. Measure the outer diameter of your main input shaft bearing before installing the plate to determine which applies.\"}},{\"@type\":\"Question\",\"name\":\"What happens if I install the plate without the correct ring?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"There will be play between the bearing and the plate bore, allowing continuous radial movement of the input shaft. That causes noise, tears up the input shaft bearing, and prematurely damages and destroys the pilot bushing adapter.\"}},{\"@type\":\"Question\",\"name\":\"Do the rings require fitting or shimming to install?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. They are precision laser cut, so the ring pops over the bearing and locks into place with no fitting, shimming or adjustment.\"}},{\"@type\":\"Question\",\"name\":\"Should I keep the rings if my transmission is already 100mm?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"Yes. Store them safely rather than discarding them. When a CD009 eventually fails the cheapest replacement is usually another used CD009, which may have a 90mm or 95mm bearing, and having the rings already on hand avoids a delay mid-build.\"}}]}\u003c\/script\u003e\u003cscript type=\"application\/ld+json\"\u003e{\"@context\":\"https:\/\/schema.org\",\"@type\":\"VideoObject\",\"name\":\"You Killed Your Pilot Bearing...Here Is The Fix\",\"description\":\"Autosports Engineering explains why CD009 pilot bushing adapters fail prematurely — the transmission comes with 90mm, 95mm or 100mm input shaft bearings, and adapter plates are cut for 100mm. Precision laser cut spacer rings convert the smaller sizes and ship with every current kit.\",\"thumbnailUrl\":\"https:\/\/i.ytimg.com\/vi\/yGOi73ojIAY\/maxresdefault.jpg\",\"uploadDate\":\"2023-06-09T14:00:44Z\",\"duration\":\"PT3M42S\",\"embedUrl\":\"https:\/\/www.youtube.com\/embed\/yGOi73ojIAY\",\"contentUrl\":\"https:\/\/www.youtube.com\/watch?v=yGOi73ojIAY\",\"publisher\":{\"@type\":\"Organization\",\"name\":\"Autosports Engineering\"}}\u003c\/script\u003e","brand":"Autosports engineering","offers":[{"title":"Default Title","offer_id":45053065101529,"sku":"11250","price":54.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0692\/2734\/8185\/files\/DSC00279-scaled.jpg?v=1712689337","url":"https:\/\/www.autosportsengineering.com\/products\/cd009-bearing-spacer-rings-90mm-95mm-to-100mm","provider":"Autosports engineering","version":"1.0","type":"link"}