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Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2258856
02/24/17 06:24 PM
02/24/17 06:24 PM
Joined: Dec 2013
Posts: 2,762
Wichita
G
GY3 Offline
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Wichita
So exciting to see this go together!


'63 Dodge 330
11.19 @ 121 mph
Pump gas, n/a, through the mufflers on street tires with 3.54's
10.40 @ 130mph with a 200 shot of nitrous.

Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2271980
03/18/17 08:21 PM
03/18/17 08:21 PM
Joined: Mar 2010
Posts: 1,308
Spencer NY
killermopar Offline
pro stock
killermopar  Offline
pro stock

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Posts: 1,308
Spencer NY
That is awesome great build page

Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2272231
03/19/17 11:15 AM
03/19/17 11:15 AM
Joined: Jan 2003
Posts: 7,935
Candler,NC / Myrtle Beach, SC
J
JDMopar Offline
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J

Joined: Jan 2003
Posts: 7,935
Candler,NC / Myrtle Beach, SC
Great job on the IRS!!! bow 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!

Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: JDMopar] #2274624
03/23/17 01:52 AM
03/23/17 01:52 AM
Joined: Jul 2009
Posts: 854
Newton, KS
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70B5Cuda Offline OP
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Newton, KS
Originally Posted By JDMopar
Great job on the IRS!!! bow 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".


1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger w/ 6.1L/A518/9"
1968 Charger Bomber 440/4spd
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
1997 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2275005
03/23/17 08:48 PM
03/23/17 08:48 PM
Joined: Feb 2009
Posts: 331
dracut mass usa
S
sparcy Offline
enthusiast
sparcy  Offline
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S

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Posts: 331
dracut mass usa
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 !!!


IF YOU ARE NOT WRECKING STUFF YOU ARE NOT LEARNING !
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: sparcy] #2278109
03/29/17 12:46 AM
03/29/17 12:46 AM
Joined: Jul 2009
Posts: 854
Newton, KS
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70B5Cuda Offline OP
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Newton, KS
Originally Posted By sparcy
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.


1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger w/ 6.1L/A518/9"
1968 Charger Bomber 440/4spd
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
1997 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2282142
04/04/17 12:31 PM
04/04/17 12:31 PM
Joined: Apr 2017
Posts: 4
Iowa
derricklaukaitis Offline
member
derricklaukaitis  Offline
member

Joined: Apr 2017
Posts: 4
Iowa
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?

Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: derricklaukaitis] #2282367
04/04/17 06:03 PM
04/04/17 06:03 PM
Joined: Jul 2009
Posts: 854
Newton, KS
7
70B5Cuda Offline OP
super stock
70B5Cuda  Offline OP
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Posts: 854
Newton, KS
Originally Posted By derricklaukaitis
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.


1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger w/ 6.1L/A518/9"
1968 Charger Bomber 440/4spd
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
1997 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2282389
04/04/17 06:42 PM
04/04/17 06:42 PM
Joined: Feb 2006
Posts: 4,063
Boca Raton, Florida
jpilone Offline
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jpilone  Offline
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Posts: 4,063
Boca Raton, Florida
Damn!! Can't wait to see this car in driveable condition!


-Jarrod Pilone
'70 Plymouth RR Convertible with amazing custom paint(Tribute/Recreation/Whateveryouwannacallit)
My Project Thread
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2282961
04/05/17 06:08 PM
04/05/17 06:08 PM
Joined: Apr 2017
Posts: 4
Iowa
derricklaukaitis Offline
member
derricklaukaitis  Offline
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Joined: Apr 2017
Posts: 4
Iowa
Originally Posted By 70B5Cuda
...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.


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)

Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2283000
04/05/17 08:05 PM
04/05/17 08:05 PM
Joined: Jul 2009
Posts: 854
Newton, KS
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70B5Cuda Offline OP
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Newton, KS
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


1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger w/ 6.1L/A518/9"
1968 Charger Bomber 440/4spd
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
1997 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2283924
04/07/17 01:13 PM
04/07/17 01:13 PM
Joined: Apr 2017
Posts: 4
Iowa
derricklaukaitis Offline
member
derricklaukaitis  Offline
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Joined: Apr 2017
Posts: 4
Iowa
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 frown

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

Last edited by derricklaukaitis; 04/07/17 01:16 PM.
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: derricklaukaitis] #2284117
04/07/17 07:53 PM
04/07/17 07:53 PM
Joined: Jul 2009
Posts: 854
Newton, KS
7
70B5Cuda Offline OP
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70B5Cuda  Offline OP
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7

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Posts: 854
Newton, KS
Originally Posted By derricklaukaitis
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 frown

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


1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger w/ 6.1L/A518/9"
1968 Charger Bomber 440/4spd
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
1997 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2285322
04/10/17 02:53 PM
04/10/17 02:53 PM
Joined: Apr 2017
Posts: 4
Iowa
derricklaukaitis Offline
member
derricklaukaitis  Offline
member

Joined: Apr 2017
Posts: 4
Iowa
Will you toss the stock LX rear shocks/springs aside and go with standard coil-overs for the IRS?

Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2288701
04/16/17 12:08 PM
04/16/17 12:08 PM
Joined: Jul 2009
Posts: 854
Newton, KS
7
70B5Cuda Offline OP
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70B5Cuda  Offline OP
super stock
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Posts: 854
Newton, KS
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.




Last edited by 70B5Cuda; 12/17/17 05:31 PM.

1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger w/ 6.1L/A518/9"
1968 Charger Bomber 440/4spd
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
1997 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2288705
04/16/17 12:10 PM
04/16/17 12:10 PM
Joined: Jul 2009
Posts: 854
Newton, KS
7
70B5Cuda Offline OP
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70B5Cuda  Offline OP
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Posts: 854
Newton, KS
Transmission crossmember from below:






Last edited by 70B5Cuda; 12/17/17 05:57 PM.

1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger w/ 6.1L/A518/9"
1968 Charger Bomber 440/4spd
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
1997 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2288708
04/16/17 12:11 PM
04/16/17 12:11 PM
Joined: Jul 2009
Posts: 854
Newton, KS
7
70B5Cuda Offline OP
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70B5Cuda  Offline OP
super stock
7

Joined: Jul 2009
Posts: 854
Newton, KS
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!




Last edited by 70B5Cuda; 12/17/17 05:48 PM.

1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger w/ 6.1L/A518/9"
1968 Charger Bomber 440/4spd
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
1997 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2289176
04/17/17 12:57 AM
04/17/17 12:57 AM
Joined: Feb 2013
Posts: 496
Maryland
K
Keepat Offline
mopar
Keepat  Offline
mopar
K

Joined: Feb 2013
Posts: 496
Maryland
cool trans mount!!
Pat

Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: Keepat] #2290267
04/18/17 09:51 PM
04/18/17 09:51 PM
Joined: Jul 2009
Posts: 854
Newton, KS
7
70B5Cuda Offline OP
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Posts: 854
Newton, KS
Originally Posted By Keepat
cool trans mount!!
Pat


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


1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger w/ 6.1L/A518/9"
1968 Charger Bomber 440/4spd
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
1997 Dodge Ram 2500 12 valve/5 speed
Re: 1968 Roadrunner Post car w/ 6.1L Hemi & 6-speed [Re: 70B5Cuda] #2290269
04/18/17 09:51 PM
04/18/17 09:51 PM
Joined: Jul 2009
Posts: 854
Newton, KS
7
70B5Cuda Offline OP
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70B5Cuda  Offline OP
super stock
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Joined: Jul 2009
Posts: 854
Newton, KS
In order to keep the seats low and provide clearance for the electric motors, a custom pan was made under both front seats.






Last edited by 70B5Cuda; 12/17/17 06:01 PM.

1970 Barracuda B5 6.1 Hemi/6 speed
1969 Charger survivor in R6 383/727-wrecked 12/24/18
1968 Charger w/ 6.1L/A518/9"
1968 Charger Bomber 440/4spd
1968 Roadrunner w/ 6.1L/6 speed
2010 B5 Challenger SRT 6.1L/6 speed
1997 Dodge Ram 2500 12 valve/5 speed
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