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rear diff leak after regearing

Discussion in 'General Tacoma Talk' started by ancasme007, Apr 25, 2025 at 5:07 PM.

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Apr 25, 2025 at 5:07 PM

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ancasme007 [OP] Member

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So I just regeared my 2023 TRD sport to 4.88 gears in preparation for 35” tires (currently on 33s), and installed ARB front and rear air lockers, coming back from the shop after picking up the truck I was checking everything and noticed a leak on the rear differential, now I’m worried, how bad can this be? shop opens back up in Monday and it’s friday, should I not drive it at all?

Any ideas on what the reason might be?

ancasme007, Apr 25, 2025 at 5:07 PM

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Apr 25, 2025 at 5:09 PM

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socalexpeditions IG: @socalexpeditions

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What shop did the work?

socalexpeditions, Apr 25, 2025 at 5:09 PM

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Apr 25, 2025 at 5:10 PM

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MGMDesertTaco Come on, live a little...

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Don't drive it. Probably pinion seal.

MGMDesertTaco, Apr 25, 2025 at 5:10 PM

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Apr 25, 2025 at 5:10 PM

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BLtheP Constantly Tinkering Member

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RC60F Transmission 5.29 R&P FJ Metal Clutch Pedal OEM Mexico-Spec Condenser Fan 265/70R16 Michelin Defender LTX M/S 2 OEM 1-Piece Lug Nuts Custom Built Switch Panel for all Electrical Accessories Rigid Amber Pro D-SS Ditch Lights Rigid 30" SAE High Beam Driving Light Bar Rigid SR-Q Pro Back-Up Light Kit (Recessed) VLEDS Tail Conversion VLEDS Bed Light Kit VLEDS Foot Well Light Kit KC HiLites Cyclone V2 Under Hood Lights Customized 2WD Low Operable (Switched) Clutch Safety Bypass

Looks like a pinion seal leak. If they go back in and fix it, I’d have them install an OEM seal. Seals that come in master kits are typically junk.

BLtheP, Apr 25, 2025 at 5:10 PM

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Apr 26, 2025 at 4:11 PM

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soundman98 Well-Known Member

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it's a weep, not a drip. it's fine to drive. just need to change the seal again.

soundman98, Apr 26, 2025 at 4:11 PM

#5

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