Official NBS 4.3v6 to GEN 3 V8 swap Guide

[JoeNova]

I'm a little confused on the mounts.

I pulled a 5.3 and grabbed both the engine mounts and frame mounts from the donor.
The passenger side looks like it will fit fine, but the driver's side isn't even close. Is it possible that the 4x4 frame mount is different on the driver's side of the 5.3 donor? I grabbed another mount from a 4x4 Yukon for the driver's side but it looks almost exactly the same.

Does the driver's side frame mount need to be from a 2 wheel drive truck? I'm doing the 4.3 to 5.3 swap into a 99 or 2000 RCSB 2wd Sierra (can't remember the year right off hand) that has rack and pinion steering.

[zebra]

I'm a little confused on the mounts.

I pulled a 5.3 and grabbed both the engine mounts and frame mounts from the donor.
The passenger side looks like it will fit fine, but the driver's side isn't even close. Is it possible that the 4x4 frame mount is different on the driver's side of the 5.3 donor? I grabbed another mount from a 4x4 Yukon for the driver's side but it looks almost exactly the same.

Does the driver's side frame mount need to be from a 2 wheel drive truck? I'm doing the 4.3 to 5.3 swap into a 99 or 2000 RCSB 2wd Sierra (can't remember the year right off hand) that has rack and pinion steering.

yeah, 2WD and 4WD frame mounts are different. gotta grab ones from a like platform.

[Lsjuan5]

I did a v6 to 5.3 swap with my stock 5 speed trans.
Anyone done the same?

[Captainsa]

I just purchased an 04 silverado 2wd rcsb with a 4.3 have an 04 6.0. Been searching but unable to find the part numbers for the exact 1500 mounts I need. I appreciate an help.