Atesilor Transmission Shift Shaft Seal Kit for Ford C4/C6, Replaces C7AZ7B498A — Linkage & Throttle Valve Seals

Atesilor Transmission Shift Shaft Seal Kit for Ford C4/C6 replaces C7AZ7B498A and seals shift linkage and throttle valve connections to stop transmission leaks.

This kit brings together the specific seals and small hardware needed to address oil seepage at the shift linkage and kickdown (throttle valve) connections on vintage Ford C-4 and C-6 automatics. If your classic Ford shows signs of fluid loss around the transmission hump or linkage, replacing these worn seals restores a proper oil-tight interface without removing the entire transmission. The kit matches OEM fit numbers and includes components sized to the original factory locations for an easier service job.

What parts are included and why does each matter?

The kit contains a linkage shaft seal, a throttle valve (kickdown) seal, a rubber grommet, and an E-clip. Each component addresses a common leakage point where external contaminants and high transmission temperatures can degrade rubber and let fluid escape.

• Linkage shaft seal — prevents oil from running out where the shift linkage passes through the case.
• Throttle valve seal — stops leaks around the kickdown/throttle valve connection under load.
• Rubber grommet — provides a snug, vibration-resistant passage for linkage components.
• E-clip — secures the assembly in place to maintain correct alignment and pressure.

How do I know this kit fits my transmission?

This Atesilor set is specified for factory Ford C-4 transmissions built between 1964 and 1986 and C-6 transmissions from 1966 onward. The included part numbers match common OEM references, so cross-referencing those numbers against your vehicle's service manual or parts list confirms compatibility.

• OEM reference: C7AZ-7B498A for direct replacement fit.
• Interchange number: 360726507A for parts lookup.
• Designed for classic Ford C4 (1964–1986) and C6 (1966+) gearboxes.

How does installing this kit help maintenance and performance?

Replacing fatigued seals prevents slow fluid loss that can cause overheating, gear slippage, and accelerated wear. A tight seal around linkages keeps transmission fluid inside the case where lubrication and hydraulic pressure remain stable, improving longevity and reducing the need for frequent top-ups or emergency repairs.

• Reduces external leaks that can create mess and drop fluid levels.
• Helps maintain hydraulic pressure for consistent shift behavior.
• Extends service intervals when combined with correct fluid and filter maintenance.

What should I prepare before I attempt installation?

Basic mechanical skill and a few hand tools are usually sufficient to replace these components without full transmission removal. Prepare a clean workspace, a service manual or torque specs, fresh transmission fluid for top-off, and safety equipment. If seals are accessed from underneath, safely lift and support the vehicle before beginning.

• Tools: pliers or snap-ring tool for the E-clip, seal driver or socket, basic hand tools.
• Supplies: replacement fluid, clean rags, light lubricant for seal installation.
• Safety: jack stands, wheel chocks, and protective gloves and eyewear.

Who is this for: The Atesilor Transmission Shift Shaft Seal Kit is aimed at classic Ford owners, restoration shops, and do-it-yourself mechanics who service C-4 and C-6 transmissions. It suits anyone seeking a targeted repair to stop leaks at shift linkage and kickdown points without undertaking a full transmission rebuild. Use this kit if your vehicle shows seepage around linkage areas, if you’re preparing a car for long-term storage, or to restore factory sealing on older Ford automatics.