$3,659.99
In stock ready to ship
Parts & Accessories
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SKU bea6ccb2bc78
Manual Transmissions$2,316.00
Freight and taxes calculated at checkout
In stock · ready to ship
No warranty
Commercial use may carry a shorter period than pleasure use.
Warranty termsFreight — oversize — from $349. Ships in 1–3 business days, 3–10 business days in transit.
Freight damage must be noted on the delivery receipt and reported within 48 hours of delivery.
Shipping rates30-day return window · 25% restocking fee plus freight both ways.
Engines or transmissions that have been disassembled or parted out cannot be returned.
Full policySecure card payment via Stripe. A deposit holds an item for 15 days.
Some engines and transmissions carry a refundable core charge, shown on the product page where it applies.
Payment termsCatalogue data
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In the seller's words
The TREMEC TCET18083 TKX 5-Speed Manual Transmission Wide Ratio Chevy is a premium 5-speed rear-wheel-drive manual transmission engineered for GM-powered classic cars, muscle cars, hot rods, and restomod projects. Featuring a wide-ratio gear set with a 3.27:1 first gear, this TKX transmission delivers outstanding off-the-line acceleration while its 0.72 overdrive provides reduced engine RPM for comfortable highway cruising.
Rated to handle 600 lb-ft of torque, the TKX is built with a rugged three-piece aluminum case, wider gears, and advanced multi-cone synchronizers for exceptionally smooth, high-RPM shifting. Its compact, end-loaded design fits many classic GM applications with minimal or no transmission tunnel modifications, making it one of the most versatile manual transmissions available.
Bellhousing, clutch kit, flywheel, crossmember, transmission mount, slip yoke, and driveshaft are sold separately unless otherwise specified.
Ideal for:
Installation may require:
Professional installation is recommended to ensure proper alignment, shifter placement, and optimum drivetrain performance.
The TREMEC TCET18083 TKX 5-Speed Manual Transmission Wide Ratio Chevy is backed by a 1-Year Limited Warranty, covering defects in materials and workmanship under normal use and proper installation.
The TREMEC TCET18083 TKX Wide Ratio is an ideal upgrade for enthusiasts seeking a modern manual transmission that combines exceptional strength with everyday drivability. Its 600 lb-ft torque capacity, 3.27 first gear, 0.72 overdrive, compact installation-friendly design, and high-RPM shift capability make it perfect for classic GM muscle cars, LS swaps, street machines, and pro-touring builds. Designed with premium synchronizers, oversized gears, and a lightweight aluminum housing, the TKX delivers smooth shifting, outstanding reliability, and excellent highway performance.
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