Starting the 8-lug swap
01-06-2016, 09:06 PM
#1
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Thread Starter
Finished the 8-lug swap
Tonight I performed the G80 conversion...otherwise known as the G-80-Pieces conversion. Tomorrow I start pulling it out and swapping in a Hummer 14-bolt rear axle assembly, the strongest 8-lug semi float axle GM ever made.
Pictures to follow.
Pictures to follow.
Last edited by Suburbazine; 02-24-2016 at 11:23 PM.
01-07-2016, 05:37 PM
#5
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Thread Starter
I've been looking at the 2500 Suburban front suspension, I think it could work with some modifications. But the adapter would be a lot easier.
01-11-2016, 02:05 PM
#6
The hummer swap is super straight forward.
You will need to relocate the lower shock mounts (welding required) or use a shock with upper and lower eyelets.
Easiest if you have the hummer brake lines, but Tahoe/Suburban ones will work with some massaging.
Parking brake will require a hybrid of hummer ends with your current cable on the frame. Not difficult, but not terribly easy to do without the appropriate crimper.
Other than that, I am running front end adapters. After reading numerous failed threads on attempted 2500 front conversions, I wanted something that simply worked vs having my truck down for a month or 2 while I did R&D to finish the 2500 swap.
Only 1 swap has been completed that I know of to date.
You will need to relocate the lower shock mounts (welding required) or use a shock with upper and lower eyelets.
Easiest if you have the hummer brake lines, but Tahoe/Suburban ones will work with some massaging.
Parking brake will require a hybrid of hummer ends with your current cable on the frame. Not difficult, but not terribly easy to do without the appropriate crimper.
Other than that, I am running front end adapters. After reading numerous failed threads on attempted 2500 front conversions, I wanted something that simply worked vs having my truck down for a month or 2 while I did R&D to finish the 2500 swap.
Only 1 swap has been completed that I know of to date.
01-11-2016, 11:37 PM
#7
You can use 2500 spindles with hubs on the front. I have a friend that did so. It was lowered but he couldn't get the alignment perfect. On a normal ride height you may be able to adjust it within spec or use an offset upper bushing.
The 2500 arms will not bolt up to a 1500. I looked into it already. The 2500 lower arms are longer and the upper arm mounting points are further apart.
The 2500 arms will not bolt up to a 1500. I looked into it already. The 2500 lower arms are longer and the upper arm mounting points are further apart.
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01-12-2016, 06:54 AM
#8
You can use 2500 spindles with hubs on the front. I have a friend that did so. It was lowered but he couldn't get the alignment perfect. On a normal ride height you may be able to adjust it within spec or use an offset upper bushing.
The 2500 arms will not bolt up to a 1500. I looked into it already. The 2500 lower arms are longer and the upper arm mounting points are further apart.
The 2500 arms will not bolt up to a 1500. I looked into it already. The 2500 lower arms are longer and the upper arm mounting points are further apart.
01-13-2016, 05:42 PM
#9
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Thread Starter
Some progress. Got the old rear out and started swapping parts over to the H2 rearend. Figured I'd order some suspension bushings and replace everything while I was there. I pulled the control arms off and made a gruesome discovery, one side was a bit tweaked top and bottom and the panhard bar wasn't true either. Right now I'm seriously considering getting Spohn bars instead of stock ones again.
