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*DESIGNING WORKSHEETS*
FOR SHOPS,FABRICATORS, AND THE HOME BUILDER***The following "drawings" and "spec sheets" are also located at other locations on our web site!!

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FRAME RAIL DESIGNS
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Over the years we have made many different frame rail shape sand designs for ourselves and for customers. Below are three "frame rail spec sheets" as examples that you can use to help design the frame rail shape that is needed.

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Other methods include sending us a Cad drawing, detailed sketch, or a cardboard template of the shape that is needed.Note: Cad drawings are sometimes not reliable for fitting bends in a certain shape. We always have to correct the specs for a workable pattern. Cardboard templates are practical, simple and reliable.

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Things to keep in mind when planning a frame rail design....*We use a 5 3/4" inside radius on all of our frame rail bends.*You will need at least 6" in between the bends.*If we are working with sharp angles that are too close together...the bends may have to be relaxed in the design in order to complete bends.

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*FRAME RAIL PATTERN DESIGN*

Below are three "dimensionsheets" to help you design a workable pattern for your project. These "spec sheets"will provide additional informationthat the above drawingsdo not provide and should be used in conjunction with them.

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When purchasing a "Featherweight"full chassis or a "Dream Chassis"...we may need these dimensions.

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Choose the drawing that is themost applicable to your project.
*Late model car
*Early model car
*Pickup truck

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*REAR WELDED FRAME CLIP DIMENSIONS*

We use a build sheet that is much like the form below. This drawing will help you when plottingout your frame and rear width.

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To start: First: measure inside fender lipto inside fender lip...straightup from the axle centerline. This is usually the widest point of the fender opening.SECOND: Pick out your wheels and tires.*You will need the tire "section width"which is the total width(bulge to bulge)inflated.*You will also need the mfg's "width" and "backspace" of the wheels. You will need these dimensionsto find the "total backspace". Ameasurement that is needed for finding the "rear's total width".

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Other things needed:*Rocker panel "height" (measured infront of the rear tire)*Outside tire "diameter" or tire height.

***DIMENSIONS***
(for above drawing)***

A....FRAME RAIL WIDTH
B....TOTAL REAR WIDTH (back ofwheel to back of wheel)**NOTE: Deduct "rotor" or "drum" thickness to find the "axle to axle" dimension!
C....INSIDE FENDER LIP TO INSIDE LIP(measured over axle centerline)
D....TOTAL TRACK WIDTHE....TOTAL BACKSPACE (backspace of wheelplus the bulge of the tire)
F....WIDTH OF WHEEL AND TIRE (inflated)
G....CLEARANCE BETWEEN FENDER LIP ANDSIDEWALL OF TIRE
H....CLEARANCE BETWEEN FRAME RAIL ANDTIRE SIDEWALL
I....WHEEL WIDTH (measured in betweenthe "inside" lips of the wheels)
J....BACKSPACE OF WHEEL (measured fromthe back edge of the rim to theback of the wheel where it contacts the axle)*****

ADDED NOTE: When calculating "total rear width", add 1/2" to each side of the wheel's width.
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(Example: A 15" wide wheel is actually 16" measured at the "outside" lips of the wheel. Use this as a "rule of thumb".
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Remember!!...the wheel's"backspace" is also measured from this outside point.
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!! IF YOU NEED HELP WITH THE DIMENSIONS, WE WILL BE GLAD TO ASSIST YOU !!
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**4-LINK WELDED CLIPS**
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Shown: Profile and positioning of front cross member and the axle relationship to the lower front bracket hole.
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**Competition 4 Link
A...approx. 26 1/4"
B...21 1/2"
Our "Competition 4-link's lower front bracket will be6" off the ground with a 32"diameter tire.
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**Ultimate II & Low Profile 4-Link
A...approx. 23 1/4"
B...18 3/4"
Our pro street 4-link'slower front bracket will be8 1/2" of the ground witha 32" diameter tire.
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**LADDER BAR WELDED CLIPS***

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Shown: Profile and positioning of front cross member and the axle relationship to the lower front bracket hole.
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**Competition w/32" Ladder Bar
A....33 7/8"
B....32"

**Competition w/36" Ladder Bar
A....37 7/8"
B....36"

** Pro Street Ladder Bar
A....34 7/8"
B....33"

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*ROLL CAGE SPEC SHEETS*
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At AUTO WELD we make many different types of roll bars and cages for cars and trucks.
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If you don't see a particular roll cage offered.....don't despair!

Below are dimensioning sheets for you to download, fill out, and fax back to us. Most of the dimensions are simple interior measurements. Upon receiving them.....we can make the roll bar or cage for you in the standard ERW tubing. DOM and Chromoly are additional. See the roll cage"options" page.

Typically an additional "custom charge" of $40-$50 is added to the current roll bar or roll cage prices.