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View Full Version : Hotchkis 2nd Gen F-Body Geometry Corrected A-Arms



Hotchkis
06-15-2009, 09:49 AM
https://static1.pt-content.com/images/pt/2009/06/80_Hotchkis_TA_Thumb-1.jpg
Geometry-Corrected A-Arms for 1970-81 Camaro & Firebird

Upper Arm Features:


Increased Caster for high speed stability
Increased Camber gain for improved cornering traction
Silver zinc plated, 4130 chromoly offset billet cross-shaft.
Offset Cross-Shaft for static negative camber improves alignment.

Lower Arm Features:


Revised geometry for superior handling performance
Aluminum adjustment shims allow ¼" - ½" ride height adjustment.
CAD designed and analyzed by FEA software for maximum strength
Increased structural rigidity due to CNC machined inset spring cup.

https://static1.pt-content.com/images/pt/2009/06/hotchkis_2nd_gen_upper_a_arms_thumb-1.jpg

https://static1.pt-content.com/images/pt/2009/06/hotchkis_2nd_gen_lower_a_arm_thumb-1.jpg

From split-bumper '70 Z28s to low-slung "Bandit" Trans Ams, second generation F-Bodies are storming the muscle car scene, thanks to a plentiful supply of inexpensive cars that are easily modified for serious performance. Now you can dramatically improve the overall handling, high-speed stability and tire adhesion of any 1970-81 Camaro, Firebird or Trans-Am with new Geometry-Corrected Upper and Lower Tubular A-Arms from Hotchkis.

Designed for easy bolt-on installation and track-dominating performance, Hotchkis Upper Tubular A-Arms increase caster for improved high speed stability and camber gain during turning, thereby increasing front tire traction for maximum driving performance. A 4130 Chromoly offset billet cross shaft creates increased static negative camber without a large alignment shim stack, improving overall alignment and creating added clearance for headers. The arms are fabricated from fully TIG welded1.25-inch tubular steel, come with pre-installed upper ball joints, smooth operating Delrin bushings and Polyurethane droop stops.

Hotchkis Tubular Lower A-Arms for the 2<sup>nd</sup> Gen F-Body use new, race-proven geometry that repositions the ball joints for increased caster and an improved camber curve. Adjustable spring shims allow you to fine-tune ride, and Delrin bushings allow the arms to move smoothly throughout the travel arc. Like Hotchkis Upper A-Arms, they are fully gusseted and TIG welded for maximum strength and come ready to install complete with ball joints, height shims, bump stops and Polyurethane coil spring locators.

Like all Hotchkis Performance suspension products, 2<sup>nd</sup> Gen F-Body Tubular A-Arms are finished in durable gloss black powdercoat and are designed, tested and manufactured in the USA using the best materials available. To preview the entire line of Hotchkis Sport Suspension parts and components, please visit www.Hotchkis.net (http://www.hotchkis.net/), email [email protected], or contact Hotchkis Performance, 12035 Burke Street Suite 13, Santa Fe Springs, CA 90670, 877-4-NOROLL, 877-466-7655.

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ProdigyCustoms
06-15-2009, 10:19 AM
Those are pretty slick. And with our sale are a even a better deal.

k7king
06-22-2009, 07:28 AM
I have a set of these and the Quality is awesome.
:yum:

dipren443
06-22-2009, 10:08 AM
How much positive caster can be acheived with these?

dipren443
07-10-2009, 05:58 AM
Any comments on the positive caster question???

406 Q-ship
07-10-2009, 12:25 PM
Any comments on the positive caster question???

The 2nd Gen F-body has good caster from GM.......5.0° positive is not that hard to get out of them.

noobwrench
07-10-2009, 02:04 PM
How much postitive caster?

How much camber change?

How much of each is built into the upper arms?

How much is built into the lower arms?

Ive seen this asked many times but never an answer....why?

Hotchkis
10-01-2009, 09:41 AM
noobwrench -

hi, sorry to be so slow in answering, I must have missed this post.

How much positive caster can be achieved?

MAX Caster with Uppers & Lowers = +9°

How much camber change?

MAX Camber with Uppers & Lowers = - 3.5°

How much is built into the upper arms?

Gain: - 1.1° of Camber

Gain: +5.2° of Caster

How much is built into the lower arms?

Gain: - 0.6° of Camber

Gain: +2° of Caster

Hope this is helpful.

protouring70
10-01-2009, 11:43 AM
Hello, I used your product on my '70 chevelle and was extremely pleased. And now on a '70 camaro, with plans of using your product once again!
Thanks, Brent