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1) Welded Subframe
1) Driveshaft Loop
1) Bolt-On Diagonal Link Kit
2) 3/4"-16 Bolts
2) 5/16"-18 Locknuts
Magnum Series Shocks or Coil Spring Mount Kit
* Magnum Series Shock equipped Frame Kits only.
Read all instructions completely before beginning the installation. The following suggestions will help to
ensure a quality installation.
All welding should be done using either the MIG or TIG process. A welding machine rated at 130
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amps or higher should be used to ensure adequate weld penetration. All of the supplied components
are made from mild steel unless otherwise noted.
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Select a clean, flat and level work area where the vehicle can remain undisturbed until final
completion. The car cannot be moved once the rear frame and floor pan has been taken out.
Trial fit all of the components several times, checking and re-checking all dimensions.
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Tack weld everything and double-check all your measurements before final welding.
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These instructions are only a guide to a correct installation. Certain applications may differ (Full
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Frame vs. Unibody etc.) but in general the basic concepts used in chassis construction remain the
same.
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Keep a fire extinguisher handy at all times during the construction process. Cutting torches, grinders
and welding sparks can spark fires at any time.
Cover all windows and gauges with cardboard to protect them from grinder sparks.
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This kit requires the installation of at least an 8-Point Roll Bar. We highly recommend that a
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10-Point Roll Cage be installed. The 8-Point, 10-Point, and 12-Point kits are available from
Competition Engineering.
For Technical Assistance, call Competition Engineering's Tech Line at
Rev. B
011019
INSTALLATION INSTRUCTIONS
UNIVERSAL WELDED LADDER BAR FRAME KIT
(203) 458-0542, 8:30am-5:00pm Eastern Time
COMPETITION ENGINEERING
80 Carter Drive • P.O. Box 1470 • Guilford, CT 06437
Phone: (203) 453-5200 • Fax: (203) 458-3581
Visit Us At www.competitionengineering.com.
PARTS LIST
1) Ladder Bar Kit
1) Coil-Over Spring Kit
2) 3/4"-16 Locknuts
2) 5/16"-18 x 1-3/4" Bolts
1) Lower Shock Mount Kit*
C3070INST
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Table of Contents
Summary of Contents for Moroso Competition Engineering C3070
- Page 1 INSTALLATION INSTRUCTIONS UNIVERSAL WELDED LADDER BAR FRAME KIT PARTS LIST 1) Welded Subframe 1) Ladder Bar Kit 1) Driveshaft Loop 1) Coil-Over Spring Kit 1) Bolt-On Diagonal Link Kit 2) 3/4"-16 Locknuts 2) 3/4"-16 Bolts 2) 5/16"-18 x 1-3/4" Bolts 2) 5/16"-18 Locknuts 1) Lower Shock Mount Kit* Magnum Series Shocks or Coil Spring Mount Kit...
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Page 2: Tool List
Ladder Bar Frame Kit installation Instructions cont. Page 2 of 14 TABLE OF CONTENTS Tool List Disassembly and Set-up III. Subframe Installation Ladder Bar Assembly Axle Bracket Installation Lower Shock Mount Installation VII. Housing Installation and Set-up VIII. Diagonal Link Set-up Final Welding Shock Assembly Final Assembly... - Page 3 Ladder Bar Frame Kit installation Instructions cont. Page 3 of 14 For a professional looking installation we highly recommend the following materials and tools: Thin cardboard to cover the windows. This protects the glass from welding and grinder sparks. Plasma Cutter for cleaner cuts when removing sheetmetal and frame components. II.
- Page 4 Ladder Bar Frame Kit installation Instructions cont. Page 4 of 14 14. the best places to use for reference points. Make sure you mark and circle the points so you can find them easily. 15. With all the critical dimensions taken, you may now remove the axle housing and any other unnecessary suspension components.
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Page 5: Subframe Installation
Ladder Bar Frame Kit installation Instructions cont. Page 5 of 14 b. The sidewall of the tire should be a minimum of 1" from the wheelwell lip. The tire should be centered on the axle centerline. c. Measure from the inside tire bulge of one wheel to the inside tire bulge of the other wheel. Subtract two inches to this dimension. - Page 6 Ladder Bar Frame Kit installation Instructions cont. Page 6 of 14 5. Drop plumb bob points off the back of the crossmember down to the line on the floor. Adjust the position of the subframe until it aligns perfectly with the new line on the floor. 6.
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Page 7: Housing Installation
Ladder Bar Frame Kit installation Instructions cont. Page 7 of 14 6. Align the brackets so that they are equally spaced from the pinion centerline for centered drivelines. For offset drivelines make sure you offset the pinion the same amount as the driveline.Tack weld the brackets so that they are 2°-4°... -
Page 8: Shock Assembly
Ladder Bar Frame Kit installation Instructions cont. Page 8 of 14 4. Thread the left-hand jam nut onto the left-hand rod end. Thread it approximately 3/4 of the way up the rod end threads. Repeat this process for the right hand rod end. 5. -
Page 9: Final Assembly
Ladder Bar Frame Kit installation Instructions cont. Page 9 of 14 3. Pull the piston rod all the way out and slide the bump stop down. Check the jam nut under the upper bearing housing making sure it is secure. 4. - Page 10 Ladder Bar Frame Kit installation Instructions cont. Page 10 of 14 CAUTION: NEVER ATTEMPT TO MAKE A SUSPENSION ADJUSTMENT WITHOUT FIRST SUPPORTING THE CHASSIS WITH JACK STANDS! 2. Check the vehicle ride height using the calculation found on your build sheet. Vehicle ride height should be changed if the car sits higher or lower than desired.
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Page 11: Troubleshooting
Ladder Bar Frame Kit installation Instructions cont. Page 11 of 14 If you run into trouble while tuning always go back to your baseline set-up. Keep your build sheet in a place where it won't get lost and refer to it when making changes. Change one thing at a time and try it before changing something else. - Page 12 Ladder Bar Frame Kit installation Instructions cont. Page 12 of 14 BUILD SHEET Driver's Side Wheelbase =______ Passenger Side Wheelbase =______ Desired Ride Height (DR) = _______ Ride Height on Jack Stands (RJ) =______ Axle C/L Height on Jack Stands (AJ) =___ Axle Housing Diameter / 2 = _______ Front Spindle Center to Center / 2 =_____ Rear Framerail to Framerail / 2 = _____...
- Page 13 Ladder Bar Frame Kit installation Instructions cont Page 13 of 14...
- Page 14 Ladder Bar Frame Kit installation Instructions cont. Page 14 of 14...
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