4L60E Pump, help request

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Apr 5, 2021 | 11:32 PM

davidp89

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Teching In

Joined: Apr 2021

Posts: 20

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From: Pereira

4L60E Pump, help request

Hello LS1 Tech Members, this is my second 4L60E rebuild. This pump belongs to my Tahoe (2007 - 2WD, 5.3 engine, street use only), I was driving at a normal speed and suddenly lost all traction, after open the tranmission I found the rotor broken and this damage in the pump body. Does the pump need to be replaced, or will this missing metal part not affect the operation? The other damage it has on the sealing surfaces is superficial and I can remove it by machining the unit but the damage circled in green is the one that really concerns me. I kindly request your expert eye to guide me. Please ignore the dirt, I haven't cleaned the unit yet.

I live in Miami but I have to be in Colombia for a while and Tahoes are not very common here so if I can save time waiting for a new pump that would be great.

Apr 6, 2021 | 04:10 PM

bbond105

TECH Junkie

Joined: May 2012

Posts: 3,047

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From: Poplarville, MS

I'm not an expert but if it were mine, I would give it a try.

Apr 6, 2021 | 06:20 PM

vorteciroc

TECH Junkie

Joined: Jun 2008

Posts: 3,202

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From: Nitro Alley

There also looks to be a good amount of grooving inside of the Stator-Support Tube from the Input-Shaft Sealing Rings.

I would just get a new rear pump half.