73-87 front suspension on 60-62 c10 questions

[JADF]

Hey y'all, I'm in the process of doing this now and I just want to have a thread to ask a few questions. First off, I know that only 1 hole on the sides will line up. What about the 3 on the bottom of the crossmember? Two on each side line up but the 3 does not

[ls60apache]

the three bottom ones should line up...since those are the ones to put it in the correct position. I did have to drill a couple in the sides.. even I think one of those lined up....there is a thread here that has pics somewhere...need to do a search..good luck

[JADF]

Well heres where I'm at. One of the bottom bolts fits (the middle). I could switch the bottom bolt to fit in any of the 3 but this is where the top rear bolt (the one that needs to be slotted) seems to fit best. The end of the crossmember to the end of the shock mount is 5.5" on both sides. Am I doing something wrong or am I just overthinking it too much?


I can't figure out how to resize photos so heres the album.

https://imgur.com/a/sVJMtEl

[ls60apache]

http://sixty7ss.proboards.com/index....display&thread
this may help you out

[ls60apache]

http://www.google.com/url?sa=t&rct=j...TF5fHX-AwmX75K
ok heres a lot of info ignore the first and forgive me for being a dumb*** for not knowing how to just give you the one link.
click the link in post #2 it will go to a list of subjects posted by Liz...then click on 60-62 suspension upgrade

[The Rocknrod]

Was it this thread that shows the swap? - http://67-72chevytrucks.com/vboard/s...d.php?t=357610

[72cs20]

In the photo you posted it shows the upper rear holes are the ones that line up the best. On my 62 I used these holes to locate the new cross member to the frame. I did not slot them, I only enlarged them due the larger bolt size used in the later cross members. After installing bolts in those upper rear holes, I leveled the top of the cross member with bottom of the frame and drilled or slotted the rest of the holes.

The bolt holes for the cross member to bottom of the frame do not all line up. The spacing is different front to back for the 60-62 vs the later years. Check post #9 in the link - http://67-72chevytrucks.com/vboard/s...d.php?t=703583
You are going to need to re-drill or slot those holes on each side, although a couple of them may line up. And you are going to have a gap between the bottom of the frame and the cross member that will need some shimming so the bolts tighten up properly.

[LostMy65]

Originally Posted by The Rocknrod

Was it this thread that shows the swap? - http://67-72chevytrucks.com/vboard/s...d.php?t=357610

I think that thread is showing a 66. (63-66)
The OP is doing a 60-62.

[JADF]

Originally Posted by 72cs20

In the photo you posted it shows the upper rear holes are the ones that line up the best. On my 62 I used these holes to locate the new cross member to the frame. I did not slot them, I only enlarged them due the larger bolt size used in the later cross members. After installing bolts in those upper rear holes, I leveled the top of the cross member with bottom of the frame and drilled or slotted the rest of the holes.

The bolt holes for the cross member to bottom of the frame do not all line up. The spacing is different front to back for the 60-62 vs the later years. Check post #9 in the link - http://67-72chevytrucks.com/vboard/s...d.php?t=703583
You are going to need to re-drill or slot those holes on each side, although a couple of them may line up. And you are going to have a gap between the bottom of the frame and the cross member that will need some shimming so the bolts tighten up properly.

perfect info, thanks!