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The GR1500 (previously called "GR1000F") is a faceplated T56 Magnum featuring faceplated gears on 1-4, custom billet shift forks, cryogenic treatment of the gearset, and rem polishing of the gearset. The process starts by taking a brand new Magnum transmission direct from Tremec, disassembling and removing the factory
Save on GR1500 Faceplated TREMEC T56 Magnum Transmission (trans only) with a Grannas Racing discount code
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