So exciting to see this go together!

That is awesome great build page

Great job on the IRS!!! Since all of the suspension mounting points for the control arms and stuff just moved inward a little, will you be able to use it all back without modification? If you can, and only have to shorten the axle assemblies that will be great!

Since the IRS frame was shortened 2.0" in the middle, the link lengths and geometry were untouched. As you stated, I should just have to have the axle shafts each shortened 1.0".

I love the ride height it looks wicked !!! I have a project thats ben neglected for over a year to take care of my dad . but now IM back !! and full steam !!!

NICE! I am not a patient person so I've really had to work on my patience. I have a similar 70 Cuda build that is currently 8 years in the making. Periodic breaks can be beneficial though. They have allowed me to refocus/refresh or to gather funds to make a better build. Good luck with your progress.

Awesome build! I'm in the middle of transferring both front and rear suspensions from a 2006 Charger R/T (I'll upgrade to SRT-like components after install) to my '50 Panel Van and your thread has caught my eye...

Did you bolt the rear cradle in or weld it in? Do you have any pics of how the connection points ended up?

I don't have any good pictures at the moment but I will try to get some. The IRS frame was too wide so it was modified in two ways. We didn't want to modify the links/geometry. to do this, two inches needed to come out of the middle of the IRS frame. Since the differential mounts to the rear bar of the IRS frame, one inch was taken out on the outside of both the differential mounting holes. The passenger side section cuts were straight up/down on both frame bars but the driver side cut was a Z shaped cut (offset) due to some bushings. Next the 4 IRS mounting ears were cut off to fit the IRS frame between the rear subframe rails. The IRS frame will be welded in. The subframe rail will also be notched to raise the IRS frame up into the car and to allow full articulation of the links.

Damn!! Can't wait to see this car in driveable condition!

So you're actually going to weld it in? I've thought about the same thing, but I wasn't sure it would be good for the long run. I suppose "why not" though... I mean, they make solid aluminum mounts, so why not just take it one step further?

Can't wait to see more pictures! Thank you for posting and replying! (now if I can figure out how to get the board to notify me when someone replies to the thread... I'll be a happy man)

Originally I wanted it to be removable but the rear frame rails will have to be cut/modified enough that it may as well just be welded in. It's not something you can just remove and go back to a solid axle. The differential mount holes are bushed so it is insulated somewhat

How did you handle the rear anti-sway bar? Did you retain it or did you nix it? Or are you planning a different anti-sway bar entirely?

Just asking because the Roadrunner really needs an anti-sway bar. My '66 Charger has body roll like no other and the Roadrunner (being a bigger and heavier car) is sure to be even worse

I can't wait to see what you do for mounting rear shocks/springs!

I removed the LX sway bar and will go custom later

Will you toss the stock LX rear shocks/springs aside and go with standard coil-overs for the IRS?

The IRS is getting welded in so the frame rails were cut:





This is the plate that will be welded in to cap the frame rail.

Transmission crossmember from below:

Originally I was going to make the original K-frame/torsion bar setup work but I changed my mind and decided to go with Reilly Motorsports for the front suspension. The RMS Alterktion setup showed up this last week. Woohoo!

cool trans mount!!
Pat

Thanks Pat! Your charger has some sweet modifications as well!

In order to keep the seats low and provide clearance for the electric motors, a custom pan was made under both front seats.