Help! 2/3 Row to 4 Row Radiator Conversion

[mrein3]

What did I do wrong?

I have a 1971 K10 4x4 with a 1970 C10 body. Who ever did the conversion I THINK put the correct fan shroud in because it fit the 2/3 row radiator well.

I ordered a new 4-row radiator on line. $153 to my front door. Then I ordered the new 4-row upper and lower brackets and pads from GMC Paul's. Everything appeared to fit right...

Until I tried to re-install the fan shroud. It simply didn't fit. It was VERY close but not right. I finally made little metal spacers to hold the top of the shroud. There is one zip tie per side on the bottom holding it in place down there.

I spent a lot of money to "do it right" and now all I got is a kluged POS.

I didn't mention that my nice metal lines I bent for the tranny cooler no longer worked because I bought the CORRECT radiator with the turned up lower hose conneciton. The lines I previously bent didn't work with the turned up lower hose. Right now I have a piece of rubber hose on 1/2 of the connections to the cooler. When I first installed the cooler I used rubber and two months later I was on the side of the road with a burst hose. I'll have to get more metal line and bend up the correct line for the new set-up.

My question is for anybody who converted from a 2/3 row to a 4 row radiator on a K10 with a small block in the factory position. Did you have to buy a different fan shroud?

The attached picture is of the kluge I made to get the shroud to work.

[68Stepbed]

Mine fit really well. What about a BB shroud?

[72MARIO]

The aftermarket rubber pads are too thick. I have told the shop local to me and there is nothing being done about it. You will need to find some originals or grind yours down shorter. I had the same problem.

[mrein3]

Originally Posted by 72MARIO

The aftermarket rubber pads are too thick. I have told the shop local to me and there is nothing being done about it. You will need to find some originals or grind yours down shorter. I had the same problem.

That makes sense. It LOOKS like it should fit but it just doesn't.

You can see in the picture how much too thick it is by looking at the little metal spacers I made for the shroud. The pads must be 1/4 inch too thick.