Strombecker #8429 Gear Set – 3/32" Shaft / 1/8" Crown – 4.5:1 Ratio Vintage Factory Card – Ideal for Early Motors like Pitmann & Kemtron ⚙️ Product Details Genuine Strombecker vintage gear set , still sealed on original factory card. Pinion Shaft Fit: 3/32" or 0.0925" diameter Crown Gear Bore: 1/8" Gear Ratio: 4.5:1 Recommended Installation: Pinion is a close sliding fit — secure with solder, epoxy, or Loctite Safer than press-fit methods which can distort gears or damage motors These are easily removed with gentle heat , no gear pullers required 🛠️ Not for use with Mabuchi or other 2mm (0.078") shaft motors. 🚚 Shipping Orders ship the next business day . Shipping charges are calculated based on package weight and destination . If the system overestimates, we will refund any overcharge on request. 🔁 Returns Returns accepted within 30 days if the item is returned in its original condition. Please contact us before initiating a return — we want you to be satisfied and will work with you to make things right. 🏁 Come Race With Us You're invited to visit our private slot car track in Sherwood, Arkansas . Schedule an appointment anytime at 👉 www.slotcarclubhouse.com We also travel often and love connecting with other slot racers. Let’s race! ~ Jim Cunningham