Instruction Manual

ManualsBrandsHotchkis ManualsCar11390U Tubular Upper Control Arms, 67-72 C-10

IMPORTANT NOTICE



BallJointInfo:

Before you install this product, please verify which front spindles you have. We have designed the upper a‐

armstoutilizethe73‐87stylespindles.Thistypeofspindlewaswidelyusedindiscbrakeconversionsdueto

its easy interchangeability and readily available replacement parts (e.g. ball joints, tie rods).The Hotchkis

lowera ‐armballjointswillworkwithspindlesfrom71‐87.However,ifyouhaveoriginal71‐72stylediscbrake

spindles and you would like to install Hotchkis upper a‐arms, you will need to order ball joints from us to

convert the Hotchkisupper  a‐arms to workwiththat spindle. (Part # FA683)Ifyouhave 63‐70 drum brake

spindles,youwillneedtoupgradeyourspindlesandbrakestotakeadvantageofthisa‐armkit.Pleasecallif

youwouldliketoupgradeyourspindlesandbrakes.



SteeringStopInfo:

In thefollowingdiagrams we willdisplay 3 popularstylesofspindles that yourtruck maybeequippedwith.

Duetothevariantsinspindlesthatareavailable,youmayneedtomodifythesteeringstoponyourspindleto

allowforpropersteeringangle.(Approx.30°)Pleaseseebelow.

• 73‐87StockHeightOEMSpindle

Summary of content (15 pages)

PAGE 1
IMPORTANT NOTICE Ball Joint Info: Before you install this product, please verify which front spindles you have. We have designed the upper a‐ arms to utilize the 73‐87 style spindles. This type of spindle was widely used in disc brake conversions due to its easy interchangeability and readily available replacement parts (e.g. ball joints, tie rods). The Hotchkis lower a‐arm ball joints will work with spindles from 71‐87.
PAGE 2
Note: Cut angle should match steering stop nub angle • 73‐87 OEM Drop Spindle
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• CPP Modular Spindle (NO MODIFICATION NEEDED)
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LOWER A-ARMS 11390L 67 - 72 C-10 Pickup Truck Thank you for your purchase from our new line of Chevy parts. Please call us at 877 ‐ 4NO ‐ ROLL if you have any questions regarding the service or installation of your Hotchkis Performance products. IMPORTANT: PLEASE READ THE ENTIRE INSTRUCTION MANUAL BEFORE STARTING THIS INSTALLATION. THIS KIT IS INTENDED FOR TRUCKS WITH 71‐72 OR 73‐87 DISC BRAKE SPINDLES. YOU MUST HAVE MECHANICAL KNOWLEDGE AND EXPERIENCE TO PERFORM THIS INSTALLATION.
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Installation of Hotchkis Lower A-Arms 1 Raise the Truck Raise the vehicle by using a drive‐on alignment rack. Securely block the rear wheels of the vehicle. 2 Disconnect the Shock Unbolt the lower shock mount on the rear side of the lower A‐arms.
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3 Disconnect the Lower Ball Joint Remove the cotter pin from the lower ball joint stud. Use a wrench to loosen the castle nut that secures the lower ball joint to the spindle. Do not remove the castle nut entirely. Keep most of the castle nut still engaged for safety. Using a heavy hammer, hit the lower portion of the spindle to break loose the ball joint stud from the spindle.
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5 Disconnect the Lower A-Arm Cross shaft At this point, the only thing holding the lower a‐arm to the car is the cross shaft. Undo the 2 U‐bolts for each arm that secure the cross shaft to the chassis. Remove the a‐arm from the vehicle.
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Reinstall the Hotchkis a‐arms in the same manner as removal. The a‐arms are side specific, so please take caution when installing them.
PAGE 9
Please also note the orientation of the cross shaft. The front section of the cross shaft has a positioning hole that mates to the front mount on the chassis. Install the cross shaft onto the vehicle first, using the same u‐bolts that held in the stock arms. Fully tighten this hardware.
PAGE 10
Reinstall the spring, positioning the top of the coil first. The Hotchkis a‐arm includes a modular spacer and spring isolator. The spacer allows you to lower your ride height by ½” if removed. If you would like to retain the same ride height, then leave the single spacer in place. The polyurethane isolator can be clocked so that the spring can seat properly in the a‐arm. Support the bottom side of the lower a‐arm with a floor jack. You should hold the coil spring in position and ready for compression.
PAGE 11
1 Remove the Stock Steering Center Link Since the Hotchkis arms alter the suspension geometry to improve front end grip, the steering center link needs to be replaced to avoid any unwanted bumpsteer that is created with this change. With the front end still off the ground, remove the cotter pins on the inner tie rod ends, idler arm, and pitman arm. Loosen all of the castle nuts associated with these cotter pins. Use a ball joint puller or pickle to disconnect each stud from the center link.
PAGE 12
Once you’ve removed the center link from the vehicle, compare it to the Hotchkis center link for proper orientation. SPECIAL NOTE: We include new steering tie rod turnbuckles for customers with disc brake conversions that utilize the 5/8” inner tie rods with 11/16” outer tie rods. If you have 5/8” inner and outer tie rods, then you may use your stock steering turnbuckles for this installation. 2 Reinstalling Hotchkis Center link Reinstall the Hotchkis Center link in the same manner as stock removal.
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Check out our other great products for your C10 Pickup at Hotchkis.
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Hotchkis Performance LLC Return Policy & Limited Warranty Effective December 1, 2010 all Hotchkis products must be registered to qualify for warranty at www.hotchkis.net or via the mail-in warranty card, included with the product, within 30 days of the original purchase date. IMPORTANT: This warranty supersedes all other warranties included with this product. Return Policy We want you to be completely satisfied with your Hotchkis Performance product.
PAGE 15
OF USE OF THE VEHICLE, DAMAGE TO THE VEHICLE OR COMPONENTS OF THE VEHICLE, ANY OTHER TYPE OF CONSEQUENTIAL DAMAGES, OR OTHER INCIDENTAL OR INDIRECT DAMAGES. HOTCHKIS’ MAXIMUM LIABILITY UNDER THIS WARRANTY SHALL IN NO EVENT EXCEED THE PURCHASE PRICE OF THE PRODUCT. Some states do not allow limitations on how long an implied warranty lasts or the exclusion or limitation of incidental or consequential damages and in such states the above limitations or exclusions may not apply.