300M Input Shaft for 4T65 Transmission

The ZZPerformance 300M Turbine Shaft is a heavy-duty upgrade for the 4T65 transmission, constructed from 300M material which is over three times the strength of stock. This robust shaft is designed to handle significant power, with a rating of up to 1000HP and a recommendation for turbo builds exceeding 500WHP. Improvements over the stock shaft include a radius'd o-ring groove, increased thickness in areas prone to weakness, reduced gear play on both sides, and an improved center ring groove. It also features a brand-new diverter tube and requires no core charge for exchange. The final grinding process is performed after hardening to ensure consistency and prevent inaccuracies. ZZPerformance input shafts are guaranteed against defects in material and workmanship. However, they are not guaranteed against breakage, as the manufacturer cannot control their use in your vehicle. This shaft has confirmed fitment with the LS4 4T65 transmission.