Gear Reduction Box, 2:1 Ratio Speed Reducer Gear Reduction Box compatible for Honda GX160
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Rear Differential compatible for Honda Rancher 420 Foreman 500 2017 2018 2019 41300-HR3-W50
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Primary Drive Clutch for CFMOTO CF400 450 500 550 600 191R HO 0GRB-051000-00030
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Pair Front CV Axle Shaft compatible for Toyota Camry 2002 - 09 compatible for Highlander Solara 2.4L
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Baja Designs S1 Amber Wide Cornering LED Light with Mounting Bracket Single 380015
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Primary Driven Clutch AM138529 compatible for John Deere XUV 620i 625i 4X4 Gas Gator FD620D
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Pair Front AWD compatible for Ford Escape 2013-19 compatible for Lincoln MKZ 1.5L 2.0L 2013 CV Axle Shaft
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Rear Driveshaft Prop Shaft compatible for Chevrolet Chevy Silverado 1500 compatible for Sierra 1500 99-05
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Front Driveshaft Assembly compatible for Ram 1500 3.6L 5.7L 2013-2018 4WD Auto Transmission
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Compatible for Polaris RZR900 900XP 2011 2012 2013 1323130 Complete Primary Drive Clutch
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Rear Final Gear Differential Assembly compatible for Honda Foreman Rubicon 500 2001-2004
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67.25inch Rear Drive Shaft Assembly compatible for Ford F-150 2004-2008 compatible for Lincoln Mark LT 4WD
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4WD 6-Lug Front compatible for Chevy GMC Silverado Sierra 1500 compatible for Tahoe Yukon CV Axle Shafts
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Drivetrain: Getting Power to the Ground
Written by the PickupChain team · Last reviewed October 17, 2026
The drivetrain carries power from the transmission to the wheels: transfer case, driveshafts, differentials, axles and hubs. Clunks when shifting into drive, vibration that rises with speed or a whining noise from the axles are typical signs of worn parts.
Bigger tires change the effective gear ratio and make the truck feel slow and shift more often. Re-gearing the differentials to a numerically higher ratio, for example from 3.73 to 4.56, restores performance after a jump to 35 or 37-inch tires.
Lifts change driveshaft angles. Vibration after a lift often points to the driveshaft angle or worn U-joints. Carrier bearing drop kits or longer driveshafts are common fixes.
Frequently Asked Questions
+Do I need to re-gear for 35-inch tires?
Not always, but most trucks with highway gears benefit. Re-gearing improves acceleration, towing and transmission behavior. Use our tire size calculator to see how much larger the new tire is.
+What does a bad wheel hub bearing sound like?
A humming or grinding noise that gets louder with speed and changes when you turn is typical. On many 4x4 trucks the hub is a bolt-in unit that can be replaced as a whole.
+How often should I change differential fluid?
Check your owner's manual. Many trucks call for 30,000 to 60,000 miles, sooner with frequent towing or after deep water crossings.