 '73 3.0l conversion suspension and parking breat suggestions, Need advice from the World! |
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| mlw914 |
 May 8 2026, 05:37 PM
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#1
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Newbie  Group: Members Posts: 4 Joined: 6-November 24 From: Los Gatos, CA Member No.: 28,449 Region Association: Northern California  |
Hello 914W,
I am going to update the suspension in my '73 914 6 conversion. It's got a 3.0l in it, dual PMO's, Cayman 4 piston calipers and 911 discs, 321 ignition, Patrick Motorsports conversion kit and front oil cooler kit, running 16" Ultralights to accommodate the brake rotors. Sway bars F & R as well. I am doing some suspension upgrades and wanted suggestions on what suspension components you all would suggest. I am leaning towards Bilstein units but not sure. I also wanted to know from those with more experience and knowledge regarding the parking brake setup. Obviously with the Cayman calipers I can't use the old system and its gone. What have you done or seen done to allow for an e brake? Don't get me wrong, my $7 Harbor Freight wheel chock is working great, just not an ideal setup. I have heard of compression lock systems and modern electric options but don't have any specifics so please, bring it on! Much thanks! Mike in NorCal |
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| Ninja |
May 8 2026, 06:03 PM
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#2
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Member Group: Members Posts: 203 Joined: 25-September 25 From: Granbury Texas Member No.: 29,004 Region Association: Southwest Region |
Ground Control rear springs/adjustable perches.
I like the Koni parts due to adjustability and warranty. Many prefer Billies... Mod rear trailing arms for early 911 parking brake assemblies. Tangerine Racing makes cable adaptors to allow 914 stock E-brake cables to work. I'm planning on strengthening the suspension points, adjustable tension rods to inner rear trailing arm mount. Adjustable/triangulated outer rear suspension mount plate (improves the strength and makes rear alignment easier). What front strut housings you are using may dictate which insert you can use. Your car sounds nice! Look at Tangerine Racing, Elephant Racing, PMB websites if you haven't yet. Welcome to the forum! |
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| wndsrfr |
May 8 2026, 07:52 PM
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#3
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Senior Member Group: Members Posts: 1,462 Joined: 30-April 09 From: Rescue, Virginia Member No.: 10,318 Region Association: MidAtlantic Region 
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Maybe try this.....Wilwood Spot Brake....
you'll have to engineer mounting and cable routing....YMMV https://www.wilwood.com/Calipers/CaliperProd?itemno=120-1360 |
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| Steve |
May 8 2026, 08:28 PM
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#4
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914 Guru Group: Members Posts: 6,041 Joined: 14-June 03 From: Laguna Niguel, CA Member No.: 822 Region Association: Southern California
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Always check the how to forum
http://www.914world.com/bbs2/index.php?showtopic=4909 I used the above info and early 911 shoe emergency brake. Make sure you weld an angle iron to the trailing arm to keep the shoes from braking loose during an emergency stop. There’s a reason why the factory did it with 911’s. |
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| mlw914 |
May 8 2026, 08:58 PM
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#5
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Newbie Group: Members Posts: 4 Joined: 6-November 24 From: Los Gatos, CA Member No.: 28,449 Region Association: Northern California |
QUOTE(Ninja @ May 8 2026, 07:03 PM)  Ground Control rear springs/adjustable perches. I like the Koni parts due to adjustability and warranty. Many prefer Billies... Mod rear trailing arms for early 911 parking brake assemblies. Tangerine Racing makes cable adaptors to allow 914 stock E-brake cables to work. I'm planning on strengthening the suspension points, adjustable tension rods to inner rear trailing arm mount. Adjustable/triangulated outer rear suspension mount plate (improves the strength and makes rear alignment easier). What front strut housings you are using may dictate which insert you can use. Your car sounds nice! Look at Tangerine Racing, Elephant Racing, PMB websites if you haven't yet. Welcome to the forum! Thanks for the info and welcom! Much appreciated, Mike |
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| mlw914 |
May 8 2026, 08:59 PM
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#6
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Newbie Group: Members Posts: 4 Joined: 6-November 24 From: Los Gatos, CA Member No.: 28,449 Region Association: Northern California |
QUOTE(wndsrfr @ May 8 2026, 08:52 PM) Maybe try this.....Wilwood Spot Brake.... you'll have to engineer mounting and cable routing....YMMV https://www.wilwood.com/Calipers/CaliperProd?itemno=120-1360 Much thanks! Appreciate the help. Mike |
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| porschetub |
May 9 2026, 12:07 AM
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#7
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914 Guru Group: Members Posts: 5,101 Joined: 25-July 15 From: New Zealand Member No.: 18,995 Region Association: None |
QUOTE(Steve @ May 9 2026, 02:28 PM) Always check the how to forum http://www.914world.com/bbs2/index.php?showtopic=4909 I used the above info and early 911 shoe emergency brake. Make sure you weld an angle iron to the trailing arm to keep the shoes from braking loose during an emergency stop. There’s a reason why the factory did it with 911’s. (IMG:style_emoticons/default/agree.gif) not sure about fitting the 40mm spacer to the backing plate as per the link you supplied ,its real not heavy enough IMO to support and emergency handbrake stop if needed . Trailing arm mounting is best and thats how mine is done now ,cheers. |
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