{"product_id":"bearing-mainshaft-195452","title":"Bearing - Mainshaft for Defender (1986 – 2006) Primary Shaft to Mainshaft LT77 and R380 5 Spd manual except V8 petrol – UKC8L","description":"\u003cp\u003eThe UKC8L is a tapered roller bearing that sits between the primary shaft and mainshaft within the LT77 and R380 5-speed manual gearboxes. It controls radial and axial load transfer between these two shafts, maintaining correct shaft alignment and gear engagement. Worn or failed bearings in this position typically present as gearbox noise under load, difficulty selecting gears, or excessive mainshaft end float.\u003c\/p\u003e\n\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eTapered roller bearing with a 17.5 x 40.0 mm dimension profile, as specified for LT77 and R380 applications\u003c\/li\u003e\n\u003cli\u003eDesigned for installation between the primary shaft and mainshaft - correct preload setting during reassembly is essential\u003c\/li\u003e\n\u003cli\u003eOEM-specification replacement suitable for LT77 and R380 gearboxes, excluding V8 petrol variants\u003c\/li\u003e\n\u003cli\u003eWhen replacing this bearing, inspect the associated shafts for wear and replace the gearbox oil on reassembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eVehicle Fitment\u003c\/h4\u003e\n\u003cp\u003eFits Defender (1986–2006), Discovery 1 (1989–1998 to LA081991), Discovery 2 (1998–2004), Range Rover P38 (1995–2002), and Range Rover Classic - all with LT77 or R380 5-speed manual transmission, excluding V8 petrol engines.\u003c\/p\u003e\n\u003cp\u003eNot sure about fitment? Feel free to get in touch at \u003ca href=\"mailto:info@thomasperformance.co.uk\"\u003einfo@thomasperformance.co.uk\u003c\/a\u003e\u003c\/p\u003e","brand":"Allmakes 4x4","offers":[{"title":"Default Title","offer_id":55821914964312,"sku":"UKC8L","price":2.84,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0890\/0070\/6392\/files\/UKC8L-600x600.jpg?v=1758873477","url":"https:\/\/thomasperformance.co.uk\/products\/bearing-mainshaft-195452","provider":"Thomas Performance Ltd","version":"1.0","type":"link"}