Ortopia Transmission Filter for TH700-R4 / 700R4 Shallow Pan — All-Metal Mesh Kit with Gasket & Seal

Ortopia's all-metal screen transmission filter kit replaces part 8667689 for TH700-R4 and early 4L60 shallow-pan transmissions, restoring proper fluid flow and protecting hydraulic-controlled shift systems.

If your classic GM vehicle uses a TH700-R4 (700R4) or an early 4L60 with the shallow, roughly 2-inch deep pan, this kit provides a direct-fit, all-metal mesh filter plus a pan gasket and intake seal. Many modern replacement filters use felt or plastic components that restrict flow; this Ortopia kit returns the original-style metal screen preferred by technicians and owners who want consistent line pressure and reliable TV cable operation.

How does this metal screen filter affect shifting and transmission life?

A free-flowing metal mesh reduces the risk of clogging that can occur with felt filters, helping the TV cable system maintain correct hydraulic pressure. Better flow helps prevent symptoms like harsh 1-2 shifts, slipping, delayed engagement, and whining noises that indicate reduced line pressure.

• All-metal screen encourages consistent fluid circulation for TV cable control.
• Less particle trapping compared with felt reduces pressure drops under load.
• Helps avoid premature wear and costly rebuilds from flow-restricted damage.

Will this filter fit my vehicle and transmission pan?

This Ortopia kit is specifically made for TH700-R4 (700R4) and early 4L60 transmissions that use the shallow pan design (flat bottom, approx. 2 inches deep). It is NOT compatible with later 4L60E/4L60 models that require a deep pan or electronic-control-specific parts.

• Direct replacement for OE 8667689 and cross-references like OE 24200161, WIX 58902.
• Fits classic GM models from early ’80s to early ’90s with shallow pan only.
• Will not fit 1994+ 4L60E without modification.

What comes in the kit and what should I check during installation?

The kit includes an all-metal screen filter with the short pickup tube for shallow pans, a reusable farpak-style pan gasket, and an intake seal for the filter neck. During service, replace fluid with Dexron III or VI, torque pan bolts per spec, and verify TV cable adjustment to restore correct shift feel.

• 1x all-metal mesh filter (short pickup tube, shallow pan configuration).
• 1x pan gasket (farpak material) and 1x intake seal for secure sealing.
• Recommended fluid: Dexron III or Dexron VI; inspect magnet and pan for debris.

How often should I change this filter and what problems does it prevent?

Service the filter and fluid every 30,000–40,000 miles under normal driving conditions or sooner for performance or towing duty. Timely replacement helps prevent clog-induced symptoms that can escalate to internal damage and expensive rebuilds.

• Replace filter and fluid every 30k–40k miles or per severe-service intervals.
• Prevents harsh shifting, slippage, delayed engagement, and TV cable pressure loss.
• Included gasket and seal reduce risk of post-service leaks when installed correctly.

Who this is for: classic GM owners, restoration shops, and do-it-yourself technicians who maintain TH700-R4 or early 4L60 transmissions with a shallow pan and want an original-style, all-metal screen solution. If you drive C3/C4 Corvettes, IROC Camaros, early Silverados, Caprice/Impala models or similar vehicles from the 1982–1993 era that require the shallow-pan layout, this kit gives you the correct fit, better flow characteristics, and the gasket/seal hardware to perform a complete service without sourcing multiple parts.