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Moving leaf springs inboard #3214433 02/18/24 07:29 PM 02/18/24 07:29 PM
Joined: Jun 2016 Posts: 906 Washington H hemienvy OP super stock
hemienvy OP super stock H Joined: Jun 2016 Posts: 906 Washington	This is for E-body... When you move the springs into the frame rails and use offset rear hangers, what is the new spring perch distance ? Center - to - center. Factory E-body is 46".

Re: Moving leaf springs inboard [Re: hemienvy] #3214440 02/18/24 08:21 PM 02/18/24 08:21 PM
Joined: Dec 2004 Posts: 10,552 Rittman Ohio fourgearsavoy I Live Here
fourgearsavoy I Live Here Joined: Dec 2004 Posts: 10,552 Rittman Ohio	I don't understand why you would need offset rear hangers when you move the springs into the rails. I would think the easy and better way would be to use sliders instead of shackles. Gus 64 Plymouth Savoy 493 Indy EZ's by Nick at Compu-Flow 5-Speed Richmond faceplate Liberty box Dana 60

Re: Moving leaf springs inboard [Re: hemienvy] #3214441 02/18/24 08:21 PM 02/18/24 08:21 PM
Joined: Jan 2003 Posts: 12,036 Benton, IL. D DaveRS23 Special needs idiot
DaveRS23 Special needs idiot D Joined: Jan 2003 Posts: 12,036 Benton, IL.	I used a pre '71 B body housing. Fit fine and was cheap. On my Cuda, to take full advantage of the wheel well opening, I had custom back spaced wheels made. 10" rims with 275 or 295 tires fit fine. Master, again and still

Re: Moving leaf springs inboard [Re: DaveRS23] #3214448 02/18/24 08:40 PM 02/18/24 08:40 PM
Joined: Jun 2016 Posts: 906 Washington H hemienvy OP super stock
hemienvy OP super stock H Joined: Jun 2016 Posts: 906 Washington	I was looking at the US Car Tool mini tub kit, this moves the springs into the rails. http://store.uscartool.com/70-74-MOPAR-E-Body-Mini-Tub-and-Spring-Relocation-Combo-Kit_p_153.html

Re: Moving leaf springs inboard [Re: fourgearsavoy] #3214452 02/18/24 08:54 PM 02/18/24 08:54 PM
Joined: Jan 2003 Posts: 74,978 U.S.S.A. JohnRR I Win
JohnRR I Win Joined: Jan 2003 Posts: 74,978 U.S.S.A.	Originally Posted by fourgearsavoy I don't understand why you would need offset rear hangers when you move the springs into the rails. I would think the easy and better way would be to use sliders instead of shackles. Gus Agreed, plus if you use the rear offset , which moves the springs to the SIDE , how are you going to move it to the side in the front ? The offset is for people that don't want to cut the car I believe . running up my post count some more .

Re: Moving leaf springs inboard [Re: JohnRR] #3214459 02/18/24 09:13 PM 02/18/24 09:13 PM
Joined: Jan 2004 Posts: 4,564 Motor City 6 6PKRTSE master
6PKRTSE master 6 Joined: Jan 2004 Posts: 4,564 Motor City	My Challenger is mini tubbed, springs moved inboard with Caltracs and split mono leafs. Also squared the springs parallel to each other. My rear hangers are mounted to brackets on a chromoly tubular bar from frame rail to frame rail from the front. The bar serves three purposes. Ties the shackles as mentioned, my down bars in the trunk tie into this bar from the top through the trunk pan, and my parachute mount ties into it from the rear. 1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.

Re: Moving leaf springs inboard [Re: hemienvy] #3214469 02/18/24 09:52 PM 02/18/24 09:52 PM
Joined: Aug 2003 Posts: 43,127 Bend,OR USA C Cab_Burge I Win
Cab_Burge I Win C Joined: Aug 2003 Posts: 43,127 Bend,OR USA	That's a lot of money for those parts it is not hard to have the front piece made by a local shop and buy the spring perches and make the rest of the parts yourself Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)

Re: Moving leaf springs inboard [Re: hemienvy] #3214474 02/18/24 10:04 PM 02/18/24 10:04 PM
Joined: Jan 2003 Posts: 5,388 Pikes Peak Country T TC@HP2 master
TC@HP2 master T Joined: Jan 2003 Posts: 5,388 Pikes Peak Country	Originally Posted by hemienvy This is for E-body... When you move the springs into the frame rails and use offset rear hangers, what is the new spring perch distance ? Center - to - center. Factory E-body is 46". f you move the spring in 3" per side using the frame rail kit, the new perch center to center would be 40". If you move the front eye into the rails, there is a corresponding rear rail offset rail that allows the shackle to be the regular vertical kind. There is not a 3" offset shackle that allows the front eye to move into the frame rail while retaining the original shackle mounting point. If you look closely at the rear view in the linked USCT site, you will see this rear frame alteration. If you use the bolt in, 1" offset front hangers, which do not cut into the frame rail, you must also use the 1" offset shackle kit. Keep in mind that the rear frame rails in an E body are splayed wider at the rear. You can only move the wheel tub in about an inch, maybe 2, before you will now have frame rail interference, regardless of where your springs are located

Re: Moving leaf springs inboard [Re: TC@HP2] #3214501 02/19/24 12:46 AM 02/19/24 12:46 AM
Joined: Jun 2016 Posts: 906 Washington H hemienvy OP super stock
hemienvy OP super stock H Joined: Jun 2016 Posts: 906 Washington	TC, curious have you done this operation on your E-body ?

Re: Moving leaf springs inboard [Re: TC@HP2] #3214562 02/19/24 10:14 AM 02/19/24 10:14 AM
Joined: Jan 2003 Posts: 12,036 Benton, IL. D DaveRS23 Special needs idiot
DaveRS23 Special needs idiot D Joined: Jan 2003 Posts: 12,036 Benton, IL.	When moving the spring that much, do you get into the rear valance with the shackle? I just used the good Dr's offset and had to 'massage' the relief in the rear pan for clearance. Master, again and still

Re: Moving leaf springs inboard [Re: hemienvy] #3214571 02/19/24 11:13 AM 02/19/24 11:13 AM
Joined: Jan 2003 Posts: 5,388 Pikes Peak Country T TC@HP2 master
TC@HP2 master T Joined: Jan 2003 Posts: 5,388 Pikes Peak Country	Originally Posted by hemienvy TC, curious have you done this operation on your E-body ? I evaluated both the 3" and 1" relocation. I elected to go 1". This is because it got the spring out of the way without needing to modify the wheel well or the frame rail. With this I change I have a 10" wheel with a 12"/305 metric tire and plenty of room everywhere. I have mocked up a 13.5"/335 metric tire that appears it would fit with a wheel with exact backspacing. If you look at the stock wheel well, there is around a 1-2" space between the rear edge of the well and the frame. If max tire size is the goal, splitting the well and installing the spacing strip, the USCT kit has this piece, would gain you that last 2 inches. In this case, a 15"/365 metric wide tire may be able to squeeze in there. Beyond that, you have to modify the frame rail. Don't forget we have a lot of the Direct Connection info along with some other members feedback in the Tech Section: http://www.moparts.org/Tech/Archive/rearsusp.html Look at the Rear Suspension Info, Spring Relocation (rear), and How to fit BIG tires on a Cuda.

Re: Moving leaf springs inboard [Re: TC@HP2] #3214591 02/19/24 12:17 PM 02/19/24 12:17 PM
Joined: Jan 2004 Posts: 4,564 Motor City 6 6PKRTSE master
6PKRTSE master 6 Joined: Jan 2004 Posts: 4,564 Motor City	Originally Posted by TC@HP2 Originally Posted by hemienvy TC, curious have you done this operation on your E-body ? I evaluated both the 3" and 1" relocation. I elected to go 1". This is because it got the spring out of the way without needing to modify the wheel well or the frame rail. With this I change I have a 10" wheel with a 12"/305 metric tire and plenty of room everywhere. I have mocked up a 13.5"/335 metric tire that appears it would fit with a wheel with exact backspacing. If you look at the stock wheel well, there is around a 1-2" space between the rear edge of the well and the frame. If max tire size is the goal, splitting the well and installing the spacing strip, the USCT kit has this piece, would gain you that last 2 inches. In this case, a 15"/365 metric wide tire may be able to squeeze in there. Beyond that, you have to modify the frame rail. Don't forget we have a lot of the Direct Connection info along with some other members feedback in the Tech Section: http://www.moparts.org/Tech/Archive/rearsusp.html Look at the Rear Suspension Info, Spring Relocation (rear), and How to fit BIG tires on a Cuda. Mine is moved in 3". It does not get into the rear valence. Here is a rear shot of my car done. 1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.

Re: Moving leaf springs inboard [Re: 6PKRTSE] #3214639 02/19/24 02:36 PM 02/19/24 02:36 PM
Joined: Jan 2003 Posts: 12,036 Benton, IL. D DaveRS23 Special needs idiot
DaveRS23 Special needs idiot D Joined: Jan 2003 Posts: 12,036 Benton, IL.	Cuda vs Challenger maybe? Rear valances are very different in that area. Master, again and still

Re: Moving leaf springs inboard [Re: DaveRS23] #3214641 02/19/24 02:40 PM 02/19/24 02:40 PM
Joined: Jan 2004 Posts: 4,564 Motor City 6 6PKRTSE master
6PKRTSE master 6 Joined: Jan 2004 Posts: 4,564 Motor City	Originally Posted by DaveRS23 Cuda vs Challenger maybe? Rear valances are very different in that area. A Cuda may be different. 1963 Belvedere 440 Max Wedge Tribute 1970 Charger R/T S.E. 440 Six Pack 1970 Challenger R/T, 528 Hemi 1970 Charger 500 S.E. 440 4 BBL 1970 Plymouth Road Runner 383 1974 Chrysler New Yorker 440 1996 2500 RAM 488 V-10 4X4 2004 3500 Dually Cummins 4x4 2012 Challenger R/T Classic.

Re: Moving leaf springs inboard [Re: 6PKRTSE] #3214651 02/19/24 03:00 PM 02/19/24 03:00 PM
Joined: May 2005 Posts: 4,713 Florida BDW master
BDW master Joined: May 2005 Posts: 4,713 Florida	I had to trim the valance braces on my Challenger, this was only the 1" Dr relocation kit. I think he now has a note about this, not needed if you don't have the cutout valance.

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