67-72 front crossmember VS squarebody

[Nitis]

Not that they are easy to come by but makes a guy wonder if the V6 crossmember would hold an LS. If I recall the V6 was only in GMC?

[First c10]

The front passenger side of the crossmember wasabout 1/8" high. I seen where another member just cut and bent down the crossmember. I just thought about adding a piece of 1/8" flat stock

[First c10]

Installed and will need to be welded

[First c10]

New it needs to be cleaned up and a7/16" hole drilled in crossmember. Then paint.

[First c10]

Mocked up and ready for paint.

[First c10]

Originally Posted by Nitis

Not that they are easy to come by but makes a guy wonder if the V6 crossmember would hold an LS. If I recall the V6 was only in GMC?

You know now that I think about it. My grandfather had a old gmc with a v6. And he used to say how mean it was. It was when I was very small. I think any crossmember would hold any motor. The crossmembers just hold the frame together. Not support the engine. Well for me and my way of thinking anyways.
Good stuff.
So that crossmember would only be in 4x4 gmc v6??? Probably not to many compared to the other configurations

[Nitis]

Originally Posted by First c10

You know now that I think about it. My grandfather had a old gmc with a v6. And he used to say how mean it was. It was when I was very small. I think any crossmember would hold any motor. The crossmembers just hold the frame together. Not support the engine. Well for me and my way of thinking anyways.
Good stuff.
So that crossmember would only be in 4x4 gmc v6??? Probably not to many compared to the other configurations

correct but if the crossmember gets in the way then you get to do all the fun stuff you are doing now!

I havent researched it but I dont ever recall a Chevy V6 of this vintage so as to how rare I dunno.

[PortalAxls]

The GMC v6 is hard to get parts for. I found a cotter pin and a rock in 2 of the cylinders, so needless to say the walls were very scored. I would have spent 900+ on custom oversize pistons, so I got an 8.1L out of a 2002 for a steal instead. Thinking of buying the diy4x motor mounts and seeing if this crossmember and mounts will work.

[First c10]

I ordered the diy4x Ls motor mounts for the square bodies. I haven't had a chance to see if it would work. Please post up some pictures if you can.
Keep us posted.

[americanmusc1e]

I had to cut a little off the top on mine. It's from an 84 k10 diesel and its in my 69 k20 frame with a sbc

[ND_guy]

Portalaxls, That looks like the crossmember my pickup had. It was originally a 292 straight six

[First c10]

Here is the cross member painted up and sittin in the frame rails.

[First c10]

This is front picture. The mounts and crossmember are not bolted in yet. I had to move the crossmember forward than I was expecting. But it clears nicely. I will take pictures when bolted in.

[7dee2]

Do you think you'll need to modify the right front corner of the crossmember or shim it some more to match the frame rail since you had to move it all forward?

[First c10]

Originally Posted by 7dee2

Do you think you'll need to modify the right front corner of the crossmember or shim it some more to match the frame rail since you had to move it all forward?

Brett,
Not sure what you mean about shimming? are you talking about the crossmember where it sits in the frame rail??? like the area I added the 1/8" plate?

Right know I have it about center of the frame and level side to side. I need to check front to back before I can mark and drill the holes.

[BigRed76]

I have to ask, what is this bracket?

[First c10]

Originally Posted by BigRed76

I have to ask, what is this bracket?

Zach that is an Off-Road Design Steering box brace. It is needed on the old frames after years of abuse(my frame front crossmember rivets were loose and I had to replace them with new grade 8 bolt as you can see in the picture.) or if you plan to run a larger tire. Crossover steering would also be good but for me it would be overkill.



Steering brace

[7dee2]

Originally Posted by First c10

Brett,
Not sure what you mean about shimming? are you talking about the crossmember where it sits in the frame rail??? like the area I added the 1/8" plate?

Right know I have it about center of the frame and level side to side. I need to check front to back before I can mark and drill the holes.

Yes, exactly where you had added the 1/8" plate.

[First c10]

Well I am going to put a 1" spacer between the crossmember and the pedestals to clear the oil pan in case I need to remove it without removing the motor. If I needs adjust I will post it.

[First c10]

Ok so more to come with this 73-87 crossmember idea..... I found a problem when trying to keep the motor in the correct location front to back, side to side it fits great.
A section of the crossmember almost hits the corner of the oil pan where the bolt that holds the crossover wiring under the crank pulley. It will have to be clearance'd. I will try and explain soon.

[First c10]

Well I finally got the motor installed with the 73-87 cross member. A little work but got it in.
This picture is where the front driver side pan it.

[First c10]

This is the first hole I cut in the crossmember. Still need some clearanceing

[First c10]

Front the front

[First c10]

This is how much I had to clearance. Now I can even use the factory wiring harness cross over loom. I forgot to take a picture after the motor was installed.