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Discussion Starter · #1 ·
I'm going to service the tranny in my truck,its a 99 suburban 2500,7.4 liter with what I beleive is a 4L80E trans.My question is there a drain for the torque converter?I hate to remove the big aluminum inspection cover to check because it looks like a pain.Has anyone with a 4L80E checked or I'm sure Chris has done one or has access to info to find out.Thanks in advance.
 

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I don not think there is a plug in the torque converter. I would recommend putting a drain plug in the pan that way you don't have to take a tranny fluid bath. LOL I just drilled a hole in the pan while it was on the truck, but be careful.
 

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Discussion Starter · #3 ·
The pan already has a drain,I just figured it would be nice to drain the converter too.
 

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I don't think they have a drain on those trucks.

Adding a drain plug to the pan is a great idea,so you don't have the mess when changinf fluid next time.
 
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