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Old 09-11-2018, 05:47 PM   #220
burnitg
Registered User
 
Join Date: Nov 2009
Location: Black Hawk, CO
Posts: 215
Re: Project Screamer - '72 GMC K2500 + DD 4-53T

All for another 1" of wheel travel...

From the start of this project, I have had serious concerns about the front axle contacting the engine at full spring compression. I measured the distance between them with the weight of the truck on the stock springs and determined that the axle tube would hit the oil pan about 1-1/2" before the differential housing hit the block.

Because I had to reverse the oil pan (in the original installation, the sump was in front and I need it to be in the rear) the turbo oil return would be on the wrong side. Since, I was going to have to modify the pan anyway, I decided to take 1" out of it and gain some wheel travel.

Here's the pan marked for cutting. The hole is where the turbo oil return was originally:

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Here's the pan fitted:

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Here's the pan welded:

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Because I moved the sump from the front to the rear, I had to add some tubing to the oil pickup. Here it is installed:

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Job done:

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While I had the pan off, I pulled all the main & rod bearings and inspected them. They all look good and the clearances are within new spec. I still need to do a compression check; but, I may not need to overhaul the engine.
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