Since 1999 the small case was the only choice and has been plagued with reliability issues. WE HAVE THE SOLUTION WITH THE LARGE CASE 6G UPGRADE UNIT BUILT IN THE USA THAT FITS IN THE SAME MOUNT, USES THE SAME BELT AND PLUGS DIRECTLY IN TO YOUR EXISTING PLUG. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Starters, Alternators, ECUs & Wiring\Alternators & Generators". The seller is "alternatorman" and is located in this country: US. This item can be shipped to United States.