One-Ton Swap Gear Package – 1988 & Older Smooth 14-Bolt / HP Dana 60 – Koyo

Complete Revolution Gear & Axle one-ton swap gear package pairing a thick-cut GM 10.5-inch 14-bolt rear gear set with a reverse-cut high-pinion Dana 60 front gear set.

Fitment: 1988-and-older smooth-housing GM 10.5-inch 14-bolt rear axles, paired with any high-pinion Dana 60 front axle.

What’s included:

• GM 10.5-inch 14-bolt thick-cut rear ring and pinion
• Dana 60 reverse-cut thick front ring and pinion
• Rear master install kit
• Front master install kit

Available ratios: 4.56, 4.88, 5.13, 5.38

Rear axle: GM 10.5-inch 14-bolt, smooth housing, 1988 and older

Front axle: Any high-pinion Dana 60, reverse cut

Carrier compatibility: GM 10.5 thick gear fits a 4.10 carrier; Dana 60 reverse-cut thick gear fits a 4.10 carrier

Pinion splines: GM 10.5: 30 spline; Dana 60: 29 spline

Bearing brand: Koyo

Gear material: 8620 steel

Supplier reference SKU: REV-GM14T/D60R-513T-K

This package is aimed at one-ton axle swaps using the earlier smooth-housing 14-bolt and a high-pinion Dana 60 front. It keeps front and rear ratios matched while bundling the install kits needed for setup. Professional gear setup is recommended.