TCI Hardened Input Shafts are constructed from hardened, aircraft quality Vaccu Melt 300 billet steel or Vasco 300 high strength steel. They feature increased lubrication flow and strength with a resized diameter that provides optimum stress distribution along the entire length of shaft along the extended high gear splines to the oil ring. See the chart below to compare TCI Input Shaft materials compared to stock and other aftermarket brands.

This 4L80E Vaccu Melt 300 Input Shaft is made from billet steel to handle far greater horsepower demands than stock replacement units.

Application

4L80E

Warranty Information

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TCI Automotive provides a limited warranty covering manufacturing defects for 30 days on racing equipment and 90 days on street/strip equipment, valid only for the original purchaser with proof of purchase. Approved transmission fluid and cooler flush products are required, and claims must be authorized through Edelbrock Group Tech Support. The warranty excludes modified, improperly installed or maintained, abused, accident‑damaged, improperly cooled, or unauthorized repaired products.

CA Prop 65

TCI Automotive 279600 Specifications

KEY SPECS
MFG. Part #	279600
Brand	TCI Automotive
Material Type	4340 steel

GENERAL
GTIN Code	788120046657
Sold in Quantity	Each

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