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1G DSM 4 Bolt Rear Tubular Subframes, Control Arms and Trailing Arms

Posted by NatFabLLC, Apr 24, 2020

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  1. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    Good evening. I would like to share with DSMTuners community a product I have been working on for the past few months and something I had shared across a few other social media outlets. What began out of necessity for my own project, an AWD 4G63 swap for 3G CSM, has grown into something that can support the 1G DSM guys as well. I am referring to the 4 bolt rear tubular subframe and accompanying tubular control arms. The goal had been to improve the factory offering in terms of performance with something lighter, stronger and adjustable, all qualities desirable in an aftermarket high performance driving focus. To date some of the only options 1G guys had were solid subframe bushings or tubular mustache bars. For my Colt project I wanted to start with the lightest option I could while still retaining factory compatible parts, such as rear differential, hubs and coilover suspension.

    001.jpg 002.jpg 003.jpg 004.jpg 006.jpg

    The end result after significant design and redesign, trial and test fittings, is something I am proud to offer to the DSM community. I have configured the subframe such that it will require aftermarket control arms that utilize spherical rod ends along with most common available active toe eliminator kits for trailing arms. These frames still use the stock sway bar location, bushings and mounts and are offered with or without for more weight savings. In terms of weight savings this design saves 20 LBS over stock subframe and mustache bar (43 LBS). For more information or any questions feel free to send over a PM. I will be sharing more updates with DSM community as more products are rolled out in coming weeks and months. Thank you.

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    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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  2. DsmKhan

    DsmKhan Proven Member

    217
    10
    Joined Dec 3, 2017
    East Hartford, Connecticut
    Any plans for the 2g
     

    Street Build 660  22

    1999 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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    Talon96fwd likes this.
  3. Talon96fwd

    Talon96fwd Proven Member

    316
    33
    Joined Apr 11, 2011
    Alexandria, Virginia
    Agreed!!! Anything for us 2gs?
     

    1K  0

    1996 Eagle Talon TSi
    14.184 @ 104.365 · 2G DSM
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  4. 93xsg

    93xsg Proven Member

    157
    21
    Joined Jul 3, 2011
    Sequim, Washington
    Thats sweet! Whats the price range on these?? Only seen tubular rears for the 2gs so this is awesome man
     

    Drag Race Build 667  15

    1993 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  5. adam4g

    adam4g Probationary Member

    29
    2
    Joined Oct 9, 2014
    Carney's Point, New Jersey
    Bump for a great guy and talented fabricator! Very exciting to see new life being breathed into the platform. Looking forward to getting his parts on my 1g when the time comes.
     
    NatFabLLC likes this.
  6. GPLaserRS

    GPLaserRS Proven Member

    305
    30
    Joined Aug 23, 2005
    Grosse Pointe, Michigan
    I’m interested too, what’s gonna be the price for this beauty?
     

    Street Build 957  4

    1992 Plymouth Laser RS Turbo AWD
    manual · 1G DSM
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    Jonathan Rice likes this.
  7. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    Good evening. Not at this time. Focus will primarily be on the 1G platform. Not saying no to the 2G stuff indefinitely but for now this is keeping me occupied. Thanks and I'll be sure to share any future updates on forum.
     

    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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  8. nukefission

    nukefission Proven Member

    145
    2
    Joined Feb 4, 2002
    Woodbridge, Virginia
    Looks great. I'm interested.
     
    NatFabLLC likes this.
  9. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    Hello again to the DSM community. Continuing with my AWD conversion my attention was now turned to more weight savings and another product development I have been working on I would like to share is a modified version of the 1G trailing arm. To date the only viable modification offered was the active toe elimination kit, comprised of solid bushing and threaded spherical rod end. This provided a solution to the desperately needed problem of car experiences excessive toe under hard driving and launching conditions. But it was still a very heavy stock component and offered little room for a larger wheel and tire combination. Building off this idea I started off on first jigging the stock trailing arm and then replacing body and factory rubber bushing end with lighter, stronger tube adjustable rod end. This provides weight savings and additional clearance around inside of wheel that some are after.
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    This version saves approximately 5 lbs per side of unsprung weight compared to factory set up. I am also working on incorporating trailing arm with sway bar mount so as to provide option for those moving to tubular control arms. Thanks for interest thus far and stay tuned for additional product offerings. #savetheDSM
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    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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    ReYnd, awdmonster1904, steve and 6 others like this.
  10. Clarke G

    Clarke G Probationary Member

    3
    0
    Joined May 26, 2020
    Kalamazoo, Michigan
    Looks like some really nice work. Curious to see what the price point is.
     
  11. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    Some August updates from last of 4 bolt batch and modified trailing arms. Next up is the 3000GT diff.
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    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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  12. rEclipserGST

    rEclipserGST Supporting Member

    1,703
    55
    Joined Nov 17, 2007
    Columbus, Ohio
    Some stuff from 1g will fit galant vr4. Is that the case here as well?
     

    Street Build 1K  25

    1995 Eagle Talon TSi AWD
    187 whp · 200 lb/ft · 2G DSM
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  13. Scott Cooper

    Scott Cooper Proven Member

    37
    2
    Joined Aug 14, 2016
    Killeen, Texas
    bump! Extremely interested in the subframe, trailing arms and control arms, will I still be able to use aftermarket sway bars with this kit? Definitely in for any subframe group or solo buys to Savannah, GA!
     
  14. Joshua Tadich

    Joshua Tadich Proven Member

    62
    18
    Joined Jul 15, 2018
    Pittsburgh, Pennsylvania
    I need this in my life. Stupid buying a house and feeding the kids always getting in the way.
     

    Street Build 596  5

    1990 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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    Vegas Smith likes this.
  15. JohnTSI

    JohnTSI Proven Member

    731
    24
    Joined Oct 1, 2003
    Wilmington, North Carolina
    I am interested in a 3kgt version. I had one made for my car and apparently the pinion angle is wrong and I am getting a driveline vibration because of it. Would love to talk to you about it.
     

    5K  9

    1992 Eagle Talon TSi AWD
    9.270 @ 147.700 · 1G DSM
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    ist dwa and TeamFury like this.
  16. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    Some late October updates that I'd like to share with DSM community. I have been preparing some tubular control arms to go along with recent subframe batch and began assembly following powdercoat. Arms are provided standard with chromoly rod ends and Moog greasable tierods for long life and excellent serviceability. Also to go along with hardware kits provided standard with every subframe order I have included what could be the most important tool any shop, the trusty bottle opener. Stay tuned for more updates. Thank you.

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    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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    ReYnd and pat white like this.
  17. Bird58

    Bird58 Probationary Member

    17
    6
    Joined Oct 5, 2019
    guam, Massachusetts
    Sent a PM for more info in the rear subs



     

    Street Build 309  3

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  18. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    Some late November updates for DSMtuners forum. The current batch of 1G DSM 3000GT differential subframes is wrapping up with first frames off to powercoat with remaining orders to follow. Final test fit of rear after final welding in complete (and swaybar mounts added if requested). Stay tuned for more updates from NatFab shop as 2021 will bring next batch of 4 bolt differential subframes. Thank you.

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    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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    ist dwa, ReYnd, pat white and 4 others like this.
  19. pat white

    pat white Proven Member

    139
    48
    Joined Jun 10, 2017
    West Bay, NL, Canada
    Beautiful work !
     

    Street Build 423  1

    1991 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  20. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    December updates with more than half of 3000GT differential batch completed and coated or shipped.
    More updates to follow. #savetheDSM #NATFABLLC Thank you.
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    Attached Files:

    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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  21. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    Good evening DSMTuners and happy new year!!:hellyeah: 2021 starting off with next batch of 4 bolt differential 1G rear subframes. Shoot me a PM if interested in placing a deposit.

     

    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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    ReYnd, TCB91GSX, pat white and 2 others like this.
  22. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    January update. start to 2nd 4 bolt subframe batch was a success. thanks to those who had participated. stay tuned for more updates as they are shared. #SAVETHEDSM #NATFABLLC
     

    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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    ReYnd, 1990TSIAWDTALON and pat white like this.
  23. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    late january updates. more offerings to follow.
     

    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
    Loading...
    ReYnd, TCB91GSX and pat white like this.
  24. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    February update on latest 4 bolt batch.
     

    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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    pat white and pieceofcloth like this.
  25. NatFabLLC

    NatFabLLC Freelancer

    17
    57
    Joined Feb 27, 2020
    Elmer, New Jersey
    another update on 1G DSM 4 Bolt subframe batch .
     

    320  3

    1989 Dodge Colt
    awd · manual · Misc Vehicles
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    pat white likes this.

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