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Discussion Starter #1
So, I don't know if this is the place for it or not, but I figure I'll start a build thread for the '70 Wagon. As I right this, I am still not 100% sure which way I'm going to go with this thing although I'm pretty sure that no matter what I do, it will be a sleeper. Meant more for cruising and the occasional stop light drag strip.

Currently it's a 307 with automatic. Overall a pretty plain Jane car that is almost completely original. White exterior with blue interior, so nothing fancy.

I do have a L96 with 6L90E transmission sitting in the garage that will most likely be dropped into the wagon, and for the LS related stuff I'll probably create and update a build thread there and copy the link to this post and my sig. I like to update the first post of any build thread with parts and such that are used because it makes it a lot easier for other people to find this stuff instead of having to sift through hundreds of posts for relevant information.

 

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Nice looking wagon, looking forward to reading about your build. My 72 is getting an L29/4L80E combo and going for the sleeper look as well.
Will a 6L90 fit under the floor?
 

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Discussion Starter #3
The short answer is that with enough time and money, everything will fit! But seriously, the floor will probably have to be raised an inch or so. Not sure if I'm going to cut the top off or just slice it down the center. The pan on the other hand is a different story. No one makes a shallow 6L90 pan, which is bigger than the 6L80. So, what I am likely going to do is either graft part of the 6L90 pan to the 6L80 pan, or just add material to the front of the pan to accommodate the bigger bolt area. You can see the differences in post 43 and 171 of this thread.
 

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Niiice, another '70! Wonderful starting point with great potential.

Welcome to the madness.

Tom
 

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Saw the trans and the pan mod you referred to. Looking forward to your build. I second what Tom said, "Welcome to the Madness".
 

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Discussion Starter #6
Niiice, another '70! Wonderful starting point with great potential.

Welcome to the madness.

Tom
Thank you. It is indeed madness. All kinds of things going through my head. Lots learned on the LS swap on my '69 Firebird.

Saw the trans and the pan mod you referred to. Looking forward to your build. I second what Tom said, "Welcome to the Madness".
I'm still figuring out what way to go, but my thought right now is to cut the front half or back half, which ever it is of the 6L90 pan and graft it to the 6L80 pan. I think trying to section the 6L90 pan may be more time consuming though it has the benefit of not modifying the pan mounting surface.
 

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Discussion Starter #7
I picked up a complete rear axle from a '02 SS Camaro this weekend and got the brakes stripped off of it. I picked up the front calipers, rotors, and brackets as well in the deal. So, if anyone needs a rear-end from a '02 Camaro SS that had about 30k on it, let me know.

Tomorrow I take the pan off of the 6L90 and if the pan from the G8 shows up, I'll be taking that to some one later this week to see about modifying one or both to provide me the clearance I need.
 

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Discussion Starter #8
10 Bolt Rebuild:

The axle is a CCA, so 3.08 open diff.

Mega rebuild kit: 83-1022M
Auburn L/S Carrier: 5420108
Richmond Gear set in 3.08: 4900111


Sent from AutoGuide.com Free App
 

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Discussion Starter #13
OK, tons more progress today. As you can see, the body and frame were divorced. The only casualty was the e brake cable. Not sure how I missed it, but I did. Went pretty smoothly with the only exception being the rear of the frame hanging up on a set of nuts that are part of the storage pan.









The hangup.
 

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Discussion Starter #14
Re: '70 Wagon Build Thread L96 w/6L90E

The plan for tomorrow is to at least get the 307 out and we'll call it the stretch goal to get the LS motor and trans in there. Once the test fit is done, then the frame will get partially cleaned up, painted, and since the new body bushings don't get here until Monday, I won't be doing anything with them.

One item to note on the wagons is that there is a cushion that's effectively under the b-pillar. GM put a nut in there so you can actually bolt that section of the body to the frame if you want. I need to get the additional hardware to do those two, but it will likely be worth it.





The stock setup was to put a cushion even though you could actually mount at this point in the frame.
 

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That B-pillar location is used on Monte Carlos, and that is how I knew of it for use when doing my 70 El Camino 20 years back, and my 70 wagon more recently. I have also found it used on some A-body Buicks I have looked at. I feel it will tighten up the chassis somewhat, can't hurt at any rate.

I bought bushings for a Monte to get all of the extra bolted bushings I needed. Turns out it didn't have the floater bushings for over the rear axle. Later I found a place that sold individual pieces, maybe these guys (can't remember) http://www.energysuspensionparts.com/

Also, those bolts in the well may be leftovers from a semi or non frame mount trailer hitch

Good luck,
Tom
 

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Discussion Starter #17
Motor is in. BRP kit worked pretty good, but it went much easier when I pulled the exhaust manifolds. The truck manifold on the drivers side will be close to the distribution block, but I think that is known.





























 

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Looks really good. Now the real work begins :) How much body lift to get the trans to fit under the floor?
 

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Discussion Starter #20
I think about 1" would do it. I don't have the trans crossmember in just yet. It's just sort of sitting there. It's hitting more in the back than in the front, but I'm going to split it like the instructions say here on page 3.
 
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