What did you do to your NBS GMT800 Tahoe/Yukon Today?

[ScottyBoy]

Do you need the part number for the deep pan? I've got one waiting to go on I'll grab the number off it


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Shouldn't really need a part number. There's only two types of pans for the 4L60 transmissions, either a shallow pan or a deep pan. The deep pan is very easily identified by a ledge or dropoff on the bottom of the pan. It's like part of the pan is shallow then the the rest of the pan is deep. Then on the shallow pan, the whole bottom of the pan is shallow and completely flat.
And I'm not sure what years or models had the deep or shallow, or which years or models had a drain plug on the pan. The info available all over the web seems inconclusive about that, nobody seems to know a definitive answer.
Bottom line, he needs a deep pan with a drain plug.
And I know what you guys mean about those God forsaken torx bolts. They are a SERIOUSLY a pain in the ass. Not only can you not see them, but they seem to strip out very easily. I really feel for you guys up North where those damn Torx bolts get all rusty, that makes them even that much more of a pain in the ass. But after servicing my transmission three times now since owning my truck, I learned a truck that helps a tiny bit on re-assembly. Instead of removing those Torx bolts, I just loosen them a lot. Then I swing the linkage over just enough to get the pan down. That way I'm not struggling trying to feel and get the boys lined and started on the threads when I'm putting it back together. I just tighten them back up since they are still in place.

 

[95escahoe]

Shouldn't really need a part number. There's only two types of pans for the 4L60 transmissions, either a shallow pan or a deep pan. The deep pan is very easily identified by a ledge or dropoff on the bottom of the pan. It's like part of the pan is shallow then the the rest of the pan is deep. Then on the shallow pan, the whole bottom of the pan is shallow and completely flat.
And I'm not sure what years or models had the deep or shallow, or which years or models had a drain plug on the pan. The info available all over the web seems inconclusive about that, nobody seems to know a definitive answer.
Bottom line, he needs a deep pan with a drain plug.
And I know what you guys mean about those God forsaken torx bolts. They are a SERIOUSLY a pain in the ass. Not only can you not see them, but they seem to strip out very easily. I really feel for you guys up North where those damn Torx bolts get all rusty, that makes them even that much more of a pain in the ass. But after servicing my transmission three times now since owning my truck, I learned a truck that helps a tiny bit on re-assembly. Instead of removing those Torx bolts, I just loosen them a lot. Then I swing the linkage over just enough to get the pan down. That way I'm not struggling trying to feel and get the boys lined and started on the threads when I'm putting it back together. I just tighten them back up since they are still in place.

That's a pretty good idea I'll have to try that when I do mine, and you have any clue as to why the new GM deep pans don't have the drain plug?


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[Rocket Man]

That's a pretty good idea I'll have to try that when I do mine, and you have any clue as to why the new GM deep pans don't have the drain plug?


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Not sure why they no longer have drain plugs but every one of those bolts seem to strip from what I've read. Also that's not a good way to drain the trans anyway; it's better to do the flush method by hooking up to the trans cooler lines and letting the trans pump pull the old out while it pulls the new in. There's write-ups on that type of flush. Most people who mess with the pan loosen it a bit and let the rear hang down until it quits draining, then just remove it and install a new filter at the same time. It's a mess with or without a drain plug.

 

[inmypassatlife]

How many distasteful mods are you going to have to correct, though?

None, other than the projector retro I did, my sound system, and the fogs I added. I've known the previous owner for 14 years. I always wanted his truck, but back then I was running through custom built cars twice a year and getting bored. When his low mileage 2001 came up for $3500 I bought it

 

[ScottyBoy]

That's a pretty good idea I'll have to try that when I do mine, and you have any clue as to why the new GM deep pans don't have the drain plug?


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I honestly have no idea why some years or models don't have a drain plug. If the newer ones don't have drain plugs then my guess would be that GM decided to just do away with it like they did away with cabin air filters. 75% of the transmission drain plugs seem to get installed too tight or they seize up for some reason. Either way, a LOT end up getting stripped out or rounded off and then you still end up having to drain it by dropping the pan, just like @Rocket Man described. I can definitely say that it honestly doesn't make that much of a difference. I have a drain plug on mine, (that isn't stripped out!) and the pan is still almost half full of fluid when I get the pan off. The drain plug does help, but I still have to keep the front bolts on and loose so I can tilt the pan and let it drain some more before dropping it all the way down

 

[Bombsquad85]

Busy day and a few other repairs and mods done.
Today I replaced the front window motor and rear window regulator (both passenger side) replaced the cabin filters, added a set of 5k hids to the drop projectors. A couple weeks ago I added the magnaflow exhaust and new rear brakes, caliper and front tie rods. Next up will be new seat covers (leather replacement) and fog lights,

 

[PG01]

My 01 hoe LS had a drain plug, it was seized up and stripped and i bought the truck new and changed it at 40k....i also tried to get it off while pan was completely off truck and no luck.. i figure trans just hot enough to seize it in there, shit happens... as for the shifter bolts I simply bent the ****** (bracket) out of the way and bent it back when i was done... no issue...just ideas for you fellas

 

[Cattivo]

Installed a new roof rack and repainted a few parts gloss black for some contrast after painting the Hoe with herculiner

 

[#1taho]

Had that feeling the other day. Sometimes it takes a plain jane to park next to you to really get a perspective of how much work you've done. After I left here I went to AutoZone where an old timer complimented on how (his exact words) "extremely clean" my truck was and then proceeded to say "i can tell you've put a lot of time and work into it" , that made me smile. Not a show truck but I try and make even a 14yr old truck look brand new and it's nice when someone acknowledges that.View attachment 183973

Well said. I agree completely.
Not a show truck but extremely clean. That's what I went for. Hard to build a driver/show truck in the salt and snow belt. So this is the best compromise


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[Bombsquad85]

Installed a new roof rack and repainted a few parts gloss black for some contrast after painting the Hoe with herculiner

View attachment 184026

I have this same grill just I paint matched. I love the emblem