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The 4-2-1 stepped-tube design maintains exhaust velocity at low rpm while allowing high-rpm flow that typical 4-1 designs sacrifice
The kit comes with a 100-micron pre-filter to protect the pump
0-inch or larger exhaust systems
verify everything before final assembly
SKU 671618 is backed by the manufacturer's quality guarantee and our satisfaction commitment
Richmond Gear 1304085016 Richmond Gear Manual Transmission Replacement Main Shafts Valve Spring Shims The 4-2-1 stepped-tube design maintainsThe Richmond Gear Manual Transmission Main Shaft 1304085016 is a forged replacement main shaft for Richmond five speed and six speed transmissions used in high performance muscle cars and race cars. If your transmission growls when coasting in gear or pops out under deceleration, the main shaft bearings are failing. Forged from 8620 alloy steel and CNC ground to final dimensions, case hardened to 6062 HRC with core hardness of 3035 HRC for impact
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