{"product_id":"1989-1990-corvette-zf-s6-40-1st-2nd-gear-outer-metal-syncro-ring-1052-304-142","title":"Used 1989–1990 Corvette ZF S6-40 1st–2nd Gear Outer Metal Synchronizer Ring – Part #1052-304-142 (Early Style with Ball Bearing Seats)","description":"\u003cp data-start=\"113\" data-end=\"251\" class=\"\"\u003e\u003cstrong data-start=\"113\" data-end=\"251\"\u003eUsed 1989–1990 Corvette ZF S6-40 1st–2nd Gear Outer Metal Synchronizer Ring – Part #1052-304-142 (Early Style with Ball Bearing Seats)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli data-start=\"253\" data-end=\"591\"\u003eThis is a \u003cstrong data-start=\"263\" data-end=\"305\"\u003eused OEM outer metal synchronizer ring\u003c\/strong\u003e for \u003cstrong data-start=\"310\" data-end=\"331\"\u003e1st and 2nd gears\u003c\/strong\u003e in the \u003cstrong data-start=\"339\" data-end=\"379\"\u003eZF S6-40 6-speed manual transmission\u003c\/strong\u003e, specifically from \u003cstrong data-start=\"399\" data-end=\"437\"\u003e1989 to early 1990 Corvette models\u003c\/strong\u003e. Part number \u003cstrong data-start=\"451\" data-end=\"467\"\u003e1052-304-142\u003c\/strong\u003e, this is the \u003cstrong data-start=\"481\" data-end=\"504\"\u003eearly-style version\u003c\/strong\u003e that includes \u003cstrong data-start=\"519\" data-end=\"561\"\u003eprovisions for the small ball bearings\u003c\/strong\u003e used in the synchro assembly.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"593\" data-end=\"613\" class=\"\"\u003e\u003cstrong data-start=\"593\" data-end=\"613\"\u003eProduct Details:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"614\" data-end=\"892\"\u003e\n\u003cli data-start=\"614\" data-end=\"647\" class=\"\"\u003e\n\u003cp data-start=\"616\" data-end=\"647\" class=\"\"\u003e\u003cstrong data-start=\"616\" data-end=\"632\"\u003ePart Number:\u003c\/strong\u003e 1052-304-142\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"648\" data-end=\"700\" class=\"\"\u003e\n\u003cp data-start=\"650\" data-end=\"700\" class=\"\"\u003e\u003cstrong data-start=\"650\" data-end=\"672\"\u003eFits Transmission:\u003c\/strong\u003e ZF S6-40 (6-speed manual)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"701\" data-end=\"771\" class=\"\"\u003e\n\u003cp data-start=\"703\" data-end=\"721\" class=\"\"\u003e\u003cstrong data-start=\"703\" data-end=\"719\"\u003eApplication:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"724\" data-end=\"771\"\u003e\n\u003cli data-start=\"724\" data-end=\"771\" class=\"\"\u003e\n\u003cp data-start=\"726\" data-end=\"771\" class=\"\"\u003e\u003cstrong data-start=\"726\" data-end=\"769\"\u003e1989–early 1990 Chevrolet Corvette (C4)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"772\" data-end=\"823\" class=\"\"\u003e\n\u003cp data-start=\"774\" data-end=\"823\" class=\"\"\u003e\u003cstrong data-start=\"774\" data-end=\"784\"\u003eStyle:\u003c\/strong\u003e Early design with ball bearing seats\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"824\" data-end=\"892\" class=\"\"\u003e\n\u003cp data-start=\"826\" data-end=\"892\" class=\"\"\u003e\u003cstrong data-start=\"826\" data-end=\"840\"\u003eCondition:\u003c\/strong\u003e Used – excellent condition from low-mileage units\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"894\" data-end=\"1273\" class=\"\"\u003e\u003cstrong data-start=\"894\" data-end=\"912\"\u003eSpecial Notes:\u003c\/strong\u003e\u003cbr data-start=\"912\" data-end=\"915\"\u003eThis early design is considered by some to be \u003cstrong data-start=\"961\" data-end=\"992\"\u003emore precise and responsive\u003c\/strong\u003e, though it is \u003cstrong data-start=\"1007\" data-end=\"1044\"\u003enotoriously difficult to assemble\u003c\/strong\u003e, as the small ball bearings tend to fall out during installation. \u003cstrong data-start=\"1111\" data-end=\"1133\"\u003eUsing light grease\u003c\/strong\u003e during assembly helps retain the bearings and simplifies the process. It’s believed ZF later revised the design to ease factory assembly.\u003c\/p\u003e\n\u003cp data-start=\"1275\" data-end=\"1423\" class=\"\"\u003eWe have a \u003cstrong data-start=\"1285\" data-end=\"1308\"\u003every limited supply\u003c\/strong\u003e of these early-style rings, all in \u003cstrong data-start=\"1344\" data-end=\"1377\"\u003eexcellent, low-mile condition\u003c\/strong\u003e—\u003cstrong data-start=\"1378\" data-end=\"1422\"\u003ehard to find and no longer available new\u003c\/strong\u003e.\u003c\/p\u003e","brand":"OEM (ZF)","offers":[{"title":"Default Title","offer_id":48344331911467,"sku":"1052-304-142","price":89.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0719\/9575\/2747\/files\/1052304142a_db9e2fbe-3ab7-408c-b914-8fb05eff0f56.jpg?v=1747416233","url":"https:\/\/www.importexportautoparts.com\/products\/1989-1990-corvette-zf-s6-40-1st-2nd-gear-outer-metal-syncro-ring-1052-304-142","provider":"Import Export Auto Parts Inc","version":"1.0","type":"link"}