Hotchkis 4013 User manual

4013 74-81 Camaro / Firebird
Hotchkis Performance LLC. 1
Please read the following key points before installing this kit.
1 – Before performing the subframe connector installation, the vehicle must be completely
assembled with all body and component parts installed (e.g. fenders, hood, quarterpanels,
trunk, full interior, engine, glass, etc.). Basically, the subframe connectors should be one of
the last components installed on your vehicle. Reason being is you want the vehicle settled
with all of it’s own final weight. The car’s body is always in constant tension, with forces
pushing or pulling within the chassis & body. You want to make sure these forces don’t
change after you install the subframe connectors. For example, if you installed subframe
connectors before installing the engine and body panels this may result in having misaligned
fenders, door panels and/or hood later on. The car must be in its final state before the
subframe connectors are installed.
2 – The subframe connectors must be installed on an alignment rack or floor ramps (all 4
wheels). The vehicle must be sitting on its wheels at ride height in order to install the
subframe connectors. Do not use a two-post lift, as this will load the chassis/body in the
wrong points causing the chassis to tweak.

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Hotchkis Performance LLC. 2
4013
Subframe Connectors 74-81Camaro / Firebird
Thank you for your purchase from our new line of F-Body parts.
Please call us at (877) 4NO - ROLL if you have any questions
regarding the service or installation of your Hotchkis products.
Subframe Connectors
Your new subframe connectors will increase the overall rigidity of your chassis and
improve handling and response. These engineered components connect the rear frame
rails with the front subframe to simulate a complete full frame chassis.
:
70-74 F-body Connectors Shown
Notes The subframe connector is essentially a Weld-In component, effectively connecting
itself to the front subframe and rear frame rails. However, you may choose to
bolt-in the front connection to allow front subframe removal if need be. Hardware for
the bolt-in procedure is included.
:
Before You Start
The installation of these subframe connectors will require you to grind and weld. It is
recommended that a trained professional install this product. Always wear eye
protection when grinding or welding.
:
Please read the entire manual before starting. All
images will depict the driver side installation.

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Hotchkis Performance LLC. 3
1. Raise Vehicle
It is best to install the subframe connectors at ride height. To do this properly, please
use a 4-Post lift or alignment rack. Disconnect the negative battery cable.
2. Prepare Subframe Pieces for Welding
Subframe pieces come fully powder coated so you will want to first prep them for the
welding process. Sand the rear mounts of the subframe connector. Make sure you file
inside the rosette weld holes also.
3. Remove Screws
Remove the screws that hold the brake/fuel lines against the body
…

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Hotchkis Performance LLC. 4
4. Mark Area to Be Sanded
Position the subframe into place and mark the area in the rear that will need to be
sanded down to prepare the surface for welding.
5. Remove Old Bushings
Unscrew and remove all old bushing pieces. You will not need these pieces any longer,
so you are free to discard them if you wish.

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Hotchkis Performance LLC. 5
6. I nstall New Bushings
Place the thin washer and top bushing on top of the frame and then slide the sleeve
into place. Install the bottom bushing and thick washer next, slide the supplied bolt up
and tighten.