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Album:
Photos:Car:DifferentialRebuild
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So, I thought my Old Car's differential was making lots of noise and needed to be rebuilt. So, I tackled this project. The ring & pinion is from Weir Performance, as they are the only place I found a 4.30 set. The rest of the parts were from Toyota. This is not a project for the feint of heart. It took many iterations of measuring, taking it apart, adjusting shims, putting it back together, measuring, etc. A press is required. These photos are a summary, and don't show how many times I took it apart and put it back together. I would guess I did that more than 20 times.
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First step: remove the diff from the car
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Remove the back cover
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After removing the c..press out the pinion
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Dirty parts
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With the case open
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Cleaning. Lots of cleaning...
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All clean!
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Left: old ring; Right: new ring
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Pressing off the old..ion bearing is tough
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Measuring the inside case height
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Measuring the clutch pack
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Measuring pinion gear backlash
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Pressing on a new rear pinion bearing
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Oiling up the diff guts before assembly
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Oily!
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Carrier after a thorough brushing
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Bolting on the new ring gear
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Carrier all painted
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Pressing on a side bearing
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Pressing on the other side bearing
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Checking ring gear runout
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Pressing in new rear..n bearing outer race
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Pressing in new fron..n bearing outer race
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Pinion parts, includ..leeve and new spacer
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Pinion spacer and shims
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Pinion in place
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First pattern check looks pretty good
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Checking backlash
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I couldn't get enoug.. down a side bearing
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Grinding down the side bearing
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Shim up the other si..aring to get preload
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Drive-side pattern looks good
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Coast-side pattern looks good
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Last look at the front pinion bearing
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Oil slinger
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Using the companion ..install the oil seal
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Torque the pinion nut to 130 ft-lb
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Side oil seal
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Other side oil seal
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Stake the pinion nut
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Install side axle
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Clean the surfaces completely before...
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...adding gasket RTV
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Install the back cover
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Torque back cover bolts
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Add cheap oil
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Run for 10 minutes o..ll with break-in oil
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Back in the car.
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