• TCI880021.jpg
    • TCI Speedometer Driven Gear Housing | GM Powerglide/TH350, 18-23 Tooth | 880021
    • TCI Speedometer Driven Gear Housing | GM Powerglide/TH350, 18-23 Tooth | 880021
    • TCI880021.jpg

    TCI Speedometer Driven Gear Housing | GM Powerglide/TH350, 18-23 Tooth | 880021

    Vendor: TCI Automotive
    Part Number: 880021
    $27.95

    Currently out of stock.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
    Free Shipping on Orders Over $99 | Excludes freight shipments
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    Product DetailsFAQReviewsRelated Products

    The TCI speedometer driven gear housing holds the driven gear in the tailhousing of GM Powerglide and TH350 transmissions. This housing is sized for driven gears with an 18 to 23 tooth count. The correct housing depends on the tooth count of the driven gear used in the application.

    • Fits GM Powerglide and TH350 transmissions
    • Driven gear tooth range: 18-23
    • Holds the driven speedometer gear in the transmission tailhousing
    • Part number: 880021

    FAQ

    Which transmissions does the TCI 880021 housing fit?

    It fits GM Powerglide and TH350 transmissions.

    What tooth count does the 880021 housing cover?

    It is sized for driven speedometer gears with an 18 to 23 tooth count.

    How is the correct driven gear tooth count determined?

    Driven teeth equal drive teeth multiplied by axle ratio and tire revolutions per mile, divided by 1001. Tire revolutions per mile equal 20168 divided by the tire diameter in inches.

    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
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    Read the full Shipping Policy
    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy
    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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