Just replaced both inner and outer wheel bearings (they were bad) on front right side, but I am still having the same problem. While in 4wd, out of gear, just rolling, there is a knocking sound coming from the front right side. Bad spindle bearing? What?

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John - '97 Ranger 4.0 L v-6 4x4 Stx, Super Cab Nearing 200,000 Miles.

Might be a bad axel U joint, there are two on that side, they are easy to check.

How do u tell if u joints r bad?

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John - '97 Ranger 4.0 L v-6 4x4 Stx, Super Cab Nearing 200,000 Miles.

[QUOTE="John Ellis;2051987"]How do u tell if u joints r bad?[/QUOTE
What year is your truck?

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What year is your truck?

97, 4 L, super cab, stx, 4x4

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John - '97 Ranger 4.0 L v-6 4x4 Stx, Super Cab Nearing 200,000 Miles.

you don't have a "spindle" you have a steering knuckle check the u joints in the front axle

to check u joints grab on either side of the ujoint and turn one hand forward and one backwards there shouldn't be any movement within the u joint if it is it's bad

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95 Ranger XLT 4x2 2.3 I4 5 speed 206,000 *dead*
96 Ranger XLT 4x4 4.0 V6 5 speed 173,000 *alive*
D35 front, 8.8 rear, 3.73 gears, limited slip rear diff