TH-400 (3L80) Rebuild

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TH-400 (3L80) Rebuild

Postby WoodStock » Apr 07 2010, 01:40

Ok, I can't put this off any longer. I'm going to rebuild my th-400 out of my Camaro. I'm not a pro, so if I screw something up that you see, LET ME KNOW !! :lol:
The trans in the car now is out of a `89 3/4ton Suburban that had a big block. In the fall of `08 the trans was slipping in third gear, hence the tear down. Now the sad part, I bought another th-400 that is equiped with a TCI reverse pattern/manual valve body and a trans-brake, that I was going to swap in. until I found this while I was going to change the trans filter:Image
If you can't see it, it is aluminum "pebbles". I can't tell if it's from the TCI pan or from in the trans. :(
So here's the deal, I'm going to rebuild both; swapping the H/D parts ( the goodies ) into the silver one that is going back into the Camaro, and the other one will be sold when I'm done to off-set the costs.
I know I went about this a little backwards, but while I was waiting for the kit to arrive, I built the trans-brake switch bracket. so I'll start with that.
I know that I didn't want the button on the steering wheel like most are mounted. It's a street car so I figured that down next to the shifter was a better choice. Using .040" thick aluminum that was left over from another project, I bent it into a "U" shape and TIGed a top and a bottom plate on.
Image
After the welding, I ground down the welds and sanded them smooth;
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Image
After installing the button, I slid the plate under the shifter and marked the mounting holes. Once the holes lined up, I checked how the cover would fit. Once satisfied, I bolted it in and attatched the cover.
Image
Image
I could've run the wire under the carpet, but I was lazy! :lol:
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I just kept adjusting the fit until I was satisfied.
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Next is pulling the "light" trans out of the car,....stay tuned. (..if I don't drop it on my head!...) :lol:
Sorry about the big pics, I'll fix `em for the next posts.
Because I said so !
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Re: TH-400 (3L80) Rebuild

Postby spib » Apr 07 2010, 02:07

I like that trans brake switch mount you made HELL YA good job!!!!!! I also wont run one on my steering wheel, I want mine down by my shifter, but my mount wont be nice like yours, good job and good luck with rebuilds :mrgreen:
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Re: TH-400 (3L80) Rebuild

Postby mytmouz » Apr 07 2010, 03:24

8)
IF you think no one cares, try missing a payment...

Image
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Re: TH-400 (3L80) Rebuild

Postby qtrmile2 » Apr 07 2010, 13:17

Looks great Dave. Nice bracket. Can't help ya on the automatic rebuilds. I'm not sure what an automatic is used for :lol:
Seriously I'm glad your getting your Camaro back on the street or track.
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Re: TH-400 (3L80) Rebuild

Postby jlk72355 » Apr 07 2010, 17:11

Nice fab work, it looks really good.
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Re: TH-400 (3L80) Rebuild

Postby WoodStock » Apr 10 2010, 02:53

Thanks guys! :oops:
Because I said so !
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Re: TH-400 (3L80) Rebuild

Postby pdq67 » May 08 2010, 22:51

I didn't read close enough to figure out your progress, but if you need some help, look up Jakeshoe and tell him ol' pdq67 sent you aasking for any help he may offer.

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Re: TH-400 (3L80) Rebuild

Postby WoodStock » May 10 2010, 01:35

Thanks. :D
Because I said so !
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