Suspension Packaging and Measurements

[69fbodyproject]

Alright I have been going over and over how to set up the rear suspension for my truck that I am building.
Other than rolling stock I keep kicking over a number of different ideas, so I decided my best bet would be to ask for ideas and opinions.
Since we are fabricating a 4130 chromoly tube chassis on a frame table packaging will not be an issue when it comes to space and where to mount suspension points.
About the only limitations are based off of wheel base and track width. Wheelbase on a 67-72 C10 pickup is 115" and rear track width is 59.7" although by making a few minor adjustments to wheel wells and fender lips the rear track width will be 59.9".
Front suspension will be based around C6 spindles and control arms, with adjustable coilovers and a splined swaybar setup.
Rolling stock after looking and asking opinions will be Forgelines, with 285/30 front and 335/30 18s R888s.
I am thinking 3 or 4 link, however I could follow Prodigies lead with Unfair and possibly go 5 link.
I want something that I can road course, autocross and drag race.
Any help or imput would be greatly appreciated.

[ProdigyCustoms]

Sounds very cool. Sounds like we need to gett Art Morrison to build you a frame.

[69fbodyproject]

I would consider that, but we already have the frame table 90% build and leveled in the shop and 270 ft of 1 5/8 x 0.083 wall moly sitting on the floor. I am lucky we have a good bender and notcher at the shop too. Between myself and my brother we can fab just about anything, and he has done a lot of chassis, but they are mainly 7.5 cert drag chassis. We decided to build this one ourselves simply to try alot of different ideas and to do something really different.

[69fbodyproject]

I guess perhaps I should clarify what I am asking. Would you build a 3 link, or 4 link suspension and how long of arms would you use? Im not going to run busings, just straight heim joints and we are going to build all the bars to be adjustable for fine tuning but I am unsure of lenghts for either a 4link or 3 link. I am thinking we are going to put a Watts link onto either setup, along with coilovers and a splined sway bar setup.

[N2TRUX]

I am thinking 3 or 4 link, however I could follow Prodigies lead with Unfair and possibly go 5 link.I want something that I can road course, autocross and drag race.Any help or input would be greatly appreciated.

Is there a reason you want to go away from the GM styled trailing arm suspension? There are several aftermarket companies that offer adjustable crossmembers, and tubular trailing arms, pan hard bars, etc.

If you prefer to build your own, a 4 link seems to be the most effective upgrade.

[ArtosDracon]

Four link will give you the best traction and least flex for drag racing, but finding a comprimise for anti-squat and dive in one suspension is going to be an issue if you want to build one chassis for them all.

[exwestracer]

Personally, my choice would be a 2 link / torque arm setup. The main problem you will encounter with a 3 or 4 link suspension will be the instant center. If you optimize it for launch, it's terrible under heavy braking. Rear brake floaters would fix that, but so would a torque arm suspension...