GNX Suspension

[88hurstolds]

I ordered a kit from Pete Hoffman, anyone else install one of these setups under their G-body?
Was wondering if there was any tips/tricks or things to be specially mindful of besides having everything level and the rear centered under the car.

Does the body need to come off the frame a little?

Are there any limits to performance with this setup?

Recommended tire size?
I have wheel flares from Angelo used on the FE3X Olds Cutlass and will be trimming or rolling the well just like the GNX's.
Does anyone have the blueprints for doing that?

 

[drogg1]

I hope this is useful:

http://www.gmhightechperformance.com/te ... _fuel.html

Maybe not.

Their installation seems to indicate that the body stays on the frame as long as you have all the body bushings installed already. Due to you not having the alignment tools, it may be more difficult for you to install I would think.

I apologize if this is something you already know or it is overly trivial.

 

[liquidh8]

Are you putting this in anything?

 

[88hurstolds]

Going in my '88 Cutlass in March or April when/if it ever warms up.
I want to get it to the track before I put it in for a before and after.
I just switched from a 3.08 7.5" posi to a 3.42 8.5" posi so I also want to see how that changed ET's as well before installing.

 

[liquidh8]

Ahh, ok. This would be a nice build thread. I am curious as to what the improvement would be. 😀 Keep up posted!

 

[olds307 and 403]

What improvements did the GNX get over the regular GN, suspension wise?

 

[Brother Al]

Different animal.... the GNX used a rear suspension set-up similar to the 3rd Gen F Body, but on the 8.5", aluminum drums, with a special aluminum axle cover that held the torque arm....