{"product_id":"12-bolt-rear-end-package","title":"12-Bolt Rear End Package","description":"The Moser Engineering 12-Bolt Built to Order Rear End Package provides a high-strength, customizable solution for automotive enthusiasts replacing or upgrading their factory rear-end assembly. Each package is manufactured in the USA using Moser's own casting boxes and features robust, seamless 3-inch O.D. steel tubing with 1\/4-inch wall thickness. The core assembly includes the housing, custom alloy axles (available in 30, 33, or 35-spline), precision-set Timken bearings, new housing ends, heavy-duty retainer plates, and a T-bolt kit.\n\nBecause these are \"car\" type rear ends, they have specific compatibility restrictions. All truck-based aftermarket suspension components that rely on the rear cover of an OEM 12-bolt truck rear are not applicable. Additionally, the UMI coil-over kit for GM A-body cars is incompatible and will not work with any available lower control arm options. Several configurations, such as the 1978-87 G-Body, 1982-92 Camaro\/Firebird, and various 1500 Silverado\/Sierra trucks, explicitly state that stock brakes cannot be used and require an aftermarket brake upgrade.\n\nOrders are built to individual specifications, including a wide range of gear ratios from 3.08 to 6.14 and multiple pinion yoke choices (1310 or 1350 series). The differential comes pre-assembled, while axles are shipped separately. Standard finish is raw bare metal, with optional powder coating available. Customers should be aware that these units are built to order and require freight shipping, with options for lift-gate service or commercial dock delivery.","brand":"Moser Engineering","offers":[{"title":"Default Title","offer_id":52663029104952,"sku":"12-Bolt Built to Order","price":2938.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0970\/4895\/3144\/files\/687071492.jpg?v=1784323003","url":"https:\/\/store.motormia.co\/products\/12-bolt-rear-end-package","provider":"MOTORMIA","version":"1.0","type":"link"}