4 wheel drive vs 2 wheel drive engine mounts

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evilunclegrimace

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Far as I'm concerned, you might as well find a friendly Treasure Yard, and buy used ones. I tried the Poly inserts, too. They're not made right for K-series trucks. The steel inserts in the Poly are angled instead of vertical; and the Poly insert itself is too huge.

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I have NO IDEA why building a decent engine mount has to be so impossible. I put my 300,000-mile, 30-year-old mounts back in the truck because I couldn't find an acceptable "new" solution. If there's a decent mount or Poly insert to be had...I don't know about it.
I used these on my '90 k 1500 and had no problems getting them to work.
 

Trlrider

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Why are these different? I do not see the step in my K1500 crossmember that matches the step engine mount.
I have Don dozens of engine swaps between one onor and another and never once thought about it. The basic dimensions are identical and one swaps with the other. Including putting a V-8 where a V-6 was factory. The base mount on the frame bolted right up. My K5 had thousand of miles on it with Autozone specials and plenty of torque from the drive train and never failed.
I think someone is seriously over thinking this and looking for a problem where one does not exist.
 

Schurkey

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I think someone is seriously over thinking this and looking for a problem where one does not exist.
What keeps the engine in place in a front-end collision?

Do you really want the engine in your lap because the crappy Chinese mounts were made of 1/2-thickness steel, and tore open?

GM does not have a reputation for spending money where they can save a nickel. If thin steel accomplished what they needed, they'd have built them that way to begin with. The fact that they didn't tells me the Communists and the Collaborators in this country, have screwed the pooch.
 

volfan72

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Here is the answer. K1500s requires different frame engine mounts than the C1500 due to crossmember/frame design. See below. Hope this helps someone else.
 

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Fragment

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I installed the Poly mounts pictured above and had no problems with them fitting in both a k1500 and k2500 over the years... but I didn't like how stiff they were, and how much vibration they transmitted to the cab.

I found these from vatozone though, and was impressed with the near OEM quality. They are much more comparable to stock mounts.
They're not like the think sheet metal anchor junk. I usually never recommend duralast but... I recommend these!

LINK
 

eran tomer

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i tried 2 aftermarket step mounts, both of them had the 3 holes mis-aligned and didn't fit the frame so i had to widen the holes. in the first one also the through bolt wouldn't go in so it went to the bin.

i wonder why all aftermarket mounts have the 2637 part number.
 

Schurkey

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i tried 2 aftermarket step mounts, both of them had the 3 holes mis-aligned and didn't fit the frame so i had to widen the holes. in the first one also the through bolt wouldn't go in so it went to the bin.
Typical Chinese quality.
i wonder why all aftermarket mounts have the 2637 part number.
If it wasn't for this...
I found these from vatozone though, and was impressed with the near OEM quality. They are much more comparable to stock mounts.
They're not like the think sheet metal anchor junk. I usually never recommend duralast but... I recommend these!

LINK
...I'd have said they all have the same part number because they're all sourced from the same manufacturer; and the Anchor number is easy to cross-reference.
 
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