Anyone Running FRONT Radius Arms? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

Ford Assassin · 12-15-2021, 01:51 AM

Decided to go with 10" coilovers from Fox on my 4wd conversion...

Only going with 4 or 6" Lift and no serious off road action....crew cab dually.

I have both 4 link and radius arm options.

Which and why?

Thx

**Richard** · 12-15-2021, 03:22 AM

A radius arm axle tends to have a more torsion bar type action as opposed to a four link which will be looser on the articulation movement. The radius arm setup also changes pinion angle and caster quite a bit more through travel over the 4 link. On the 4 link pinion angle and caster remains fairly constant. Was looking at radius arm from Blitzkrieg as well as 4 link by ORD. I chose the four link over the radius arm myself. Am running a sway bar as well which is added cost.

Ford Assassin · 12-15-2021, 01:08 PM

Quote:

Originally Posted by Richard

A radius arm axle tends to have a more torsion bar type action as opposed to a four link which will be looser on the articulation movement. The radius arm setup also changes pinion angle and caster quite a bit more through travel over the 4 link. On the 4 link pinion angle and caster remains fairly constant. Was looking at radius arm from Blitzkrieg as well as 4 link by ORD. I chose the four link over the radius arm myself. Am running a sway bar as well which is added cost.

I appreciate the response.

The reason the radius arm setup attracts my attention is the simple nature of it.

Plus I am NOT gonna do any real off roading

**Willowrun** · 12-15-2021, 01:47 PM

I have some Fords with the factory radius arm front suspension and based on how they ride (nice) and the fact you will be using it primarily on the road I would go radius arms all the way. Panhard needs to be parallel with steering arm and caster at 5% or so and you’re good.

**Richard** · 12-16-2021, 04:09 AM

Quote:

Originally Posted by Ford Assassin

I appreciate the response.

The reason the radius arm setup attracts my attention is the simple nature of it.

Plus I am NOT gonna do any real off roading

Radius arms will most likely work for you and would have been fine for me. Maybe even without a sway bar. The 4 link was probably more fab work but that is mostly just time for me. I have a higher lift height and wanted to keep link bars or arms flatter. They have to be longer to achieve that. Four link kit allowed for custom length. Flatter bars equal a better ride and road manners. Final deciding factor for me was the radius arm kit I was looking at would have ended up costing more money in the end.

Ford Assassin · 03-08-2022, 02:08 AM

I ended up going radius arms and got the angle at 2* at ride height. 7* of caster. Crossover steering bar and Panhard bar at 1*. If anyone wants to see pics, I can post a few.

**Richard** · 03-08-2022, 10:10 PM

Lets see some pics

Ford Assassin · 03-08-2022, 10:18 PM

Quote:

Originally Posted by Richard

Lets see some pics

Here you go!!

57taskforce · 03-09-2022, 12:22 AM

That’s a hell of a bad ass build! I wish 12 valves hadn’t got so expensive over the last 10 years or so. Really nice work!

**Richard** · 03-09-2022, 02:49 AM

Nice! Was that a kit? How is the ride compared to stock?

Ford Assassin · 04-05-2022, 11:52 PM

Quote:

Originally Posted by Richard

Nice! Was that a kit? How is the ride compared to stock?

Sorta. The radius arm kit came from WFO Concepts. The crossover, Panhard bar, and shock towers came from RuffStuff Specialties.

It rides AMAZING. Better than when the truck was still 2wd.

**Dieselwrencher** · 04-06-2022, 09:19 AM

Very nice! I've really been considering using some Dodge D60s to take advantage of the coil springs.

12-15-2021, 01:51 AM	#1
Ford Assassin Registered User Join Date: Jun 2008 Location: Jackson, Ca. Posts: 674	Anyone Running FRONT Radius Arms? Decided to go with 10" coilovers from Fox on my 4wd conversion... Only going with 4 or 6" Lift and no serious off road action....crew cab dually. I have both 4 link and radius arm options. Which and why? Thx __________________ Cable -K5 Blazer 2wd: 6.0 LQ4, 7875 Turbo, Tick Stage II Turbo Cam, Built 4L80e, RevMax Billet 3600, 9.5" 14 Bolt -Chevy 3+3 Crew Cab Dually: Cummins 12v P-Pump Swap, Compound Turbos, A2W Intercooler, NV4500HD, 4wd conversion, Radius Arms, Coilovers, Crossover Steering, etc Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=803608

12-15-2021, 03:22 AM	#2
Richard Senior Member Join Date: Dec 1999 Location: Southern California Posts: 2,896	Re: Anyone Running FRONT Radius Arms? A radius arm axle tends to have a more torsion bar type action as opposed to a four link which will be looser on the articulation movement. The radius arm setup also changes pinion angle and caster quite a bit more through travel over the 4 link. On the 4 link pinion angle and caster remains fairly constant. Was looking at radius arm from Blitzkrieg as well as 4 link by ORD. I chose the four link over the radius arm myself. Am running a sway bar as well which is added cost. __________________ Richard 1972 K10 Custom Deluxe SWB Fleetside My build https://67-72chevytrucks.com/vboard/...d.php?t=800746 Last edited by Richard; 12-15-2021 at 03:32 AM.

12-15-2021, 01:47 PM	#4
Willowrun Senior Member Join Date: Mar 2013 Location: Ann Arbor, MI Posts: 1,030	Re: Anyone Running FRONT Radius Arms? I have some Fords with the factory radius arm front suspension and based on how they ride (nice) and the fact you will be using it primarily on the road I would go radius arms all the way. Panhard needs to be parallel with steering arm and caster at 5% or so and you’re good.

03-08-2022, 02:08 AM	#6
Ford Assassin Registered User Join Date: Jun 2008 Location: Jackson, Ca. Posts: 674	Re: Anyone Running FRONT Radius Arms? I ended up going radius arms and got the angle at 2* at ride height. 7* of caster. Crossover steering bar and Panhard bar at 1*. If anyone wants to see pics, I can post a few. __________________ Cable -K5 Blazer 2wd: 6.0 LQ4, 7875 Turbo, Tick Stage II Turbo Cam, Built 4L80e, RevMax Billet 3600, 9.5" 14 Bolt -Chevy 3+3 Crew Cab Dually: Cummins 12v P-Pump Swap, Compound Turbos, A2W Intercooler, NV4500HD, 4wd conversion, Radius Arms, Coilovers, Crossover Steering, etc Build Thread: http://67-72chevytrucks.com/vboard/s...d.php?t=803608

03-08-2022, 10:10 PM	#7
Richard Senior Member Join Date: Dec 1999 Location: Southern California Posts: 2,896	Re: Anyone Running FRONT Radius Arms? Lets see some pics __________________ Richard 1972 K10 Custom Deluxe SWB Fleetside My build https://67-72chevytrucks.com/vboard/...d.php?t=800746

03-09-2022, 12:22 AM	#9
57taskforce All about them K’s Join Date: Jun 2014 Location: Land of Entrapment Posts: 6,503	Re: Anyone Running FRONT Radius Arms? That’s a hell of a bad ass build! I wish 12 valves hadn’t got so expensive over the last 10 years or so. Really nice work! __________________ Tyler '57 3100 http://67-72chevytrucks.com/vboard/s...d.php?t=813888 '72 K20 Cheyenne: 5” lift, 35’s, front dana 60 blah blah blah… http://67-72chevytrucks.com/vboard/s...d.php?t=662879 ‘69 K10 SWB: 4” lift 33”s… in a million pieces http://67-72chevytrucks.com/vboard/s...d.php?t=805206 '98 Silverado LT K2500HD ECLB Vortec 454/4l80E: 6" lift 35x12.5x20’s

03-09-2022, 02:49 AM	#10
Richard Senior Member Join Date: Dec 1999 Location: Southern California Posts: 2,896	Re: Anyone Running FRONT Radius Arms? Nice! Was that a kit? How is the ride compared to stock? __________________ Richard 1972 K10 Custom Deluxe SWB Fleetside My build https://67-72chevytrucks.com/vboard/...d.php?t=800746

04-06-2022, 09:19 AM	#12
Dieselwrencher 6>8 Plugless........ Join Date: Sep 2007 Location: Prairie City, Ia Posts: 17,142	Re: Anyone Running FRONT Radius Arms? Very nice! I've really been considering using some Dodge D60s to take advantage of the coil springs. __________________ Ryan 1972 Chevy Longhorn K30 Cheyenne Super, 359 Inline 6 cylinder, Auto Trans, Tilt, Diesel Tach/Vach, Buckets, Rare Rear 4-link and air ride option Build Thread 1972 GMC Sierra Grande Longhorn 4x4 1972 Chevy Cheyenne Super K20 Long Step side tilt, tach, tow hooks, AC, 350 4 speed 1972 C10 Suburban Custom Deluxe 1969 Chevy milk truck 1971 Camaro RS 5.3 BTR STG3 Cam Super T10 1940 Ford 354 Hemi 46RH Ford 9" on air ride huge project *Tired of spark plugs? Check this out.*



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