Rear Suspension Opinions
 

My '84 when purchased already had shackles and hangers for a 4" drop. I want it at least another 3" lower (it can be more)to tuck the 31" tires.

I already have purchased new Caltracs for non flip but I can change that easily they said.

I am considerling lowering leaf springs as to a flip kit since I already have 4".

I want the best set up for straight line traction. I would like your opinions....

It will have around 850hp on the street and more at the track.

I am not currently considering a 4 link or ladder bar at this time.

Re: Rear Suspension Opinions
 

I'd consider the 4link and beafing the frame. Oh yeah a roll cage too:tim:

Re: Rear Suspension Opinions
 

This. 800+ horses through a low rider leaf setup is going to do nothing but wrap your axle, and break drive shafts.


triangulated 4-link is my opinion.

Re: Rear Suspension Opinions
 

For that kind of power, you really do need to look into some frame reinforcements and a 4-link set-up. You will have a very hard time getting any of that power to the ground otherwise. Staying with leaves will probably give you a lot of axle wind-up, and lead to broken rear axles as well.

Re: Rear Suspension Opinions
 

Caltracs will take care of that... they are doing well behind 1500 HP Stock suspended X275 Cars

Re: Rear Suspension Opinions
 

got any pics of this truck? and specs on the motor

Re: Rear Suspension Opinions
 

x2 for caltracs. X275 cars are going bottom 8s on stock style suspension and a 275 drag radial. I'd do a flip kit and maybe some split mono leafs. Calvert can build those for your application. Add some double adjustable shocks and youll hook on dirt!:metal:

Re: Rear Suspension Opinions
 

The motor is a Dart block 377, with Trickflow 215 heads, Victor Jr. intake and a Quick Fuel 750 blow through carb.

Twin 76mm Turbos running E85.

Complete Aeromotive Fuel System with -10 supply and -10 return

All I need to purchase now is a $3000 Turbo 400 and converter LOL

I'll work on getting pictures. Right now it just has the GM crate 290 horse engine and a turbo 350. This will do me until paint and suspension gets Ironed out.

My point of my post is that I KNOW that the Caltracs will hold up under some high horse power leaf spring cars. I was just curios which may be better for traction. Flipped or not. I asked Scott at Caltrac and he said either way, but you know how that goes...

Re: Rear Suspension Opinions
 

There is a bit of planning and testing that will need to go into either set-up. I wouldn't say that either is a "plug-n-play" type of thing, and will require proper chassis set-up. Those guys that are running 8's on DR's with CalTracs did NOT just slap them on and run. I can assure you of that.

Re: Rear Suspension Opinions
 

I used to talk to a guy that had a 396 sbc that ran a 175 HP Hit... he had stock springs, Non-flipped Axle, Caltracs, and the Rancho 9000 shocks that Calverts sells... he was running bottom 10's and used a trans brake...
He ran really low 60'... but I cannot remember how low?
Anyway I asked him about his setup, and he said non-flipped worked best and having his pinion angle at -4.0°
I cannot remember his name... I'll see if i can find a video... that thing left hard

We definitely need pics of the twins :metal::metal:

Re: Rear Suspension Opinions
 

I'm running the Western Chassis drop leaves with a stock 350. They are only 2 or 3 leaves thick, if that matters.

Slonaker

Re: Rear Suspension Opinions
 

Thanks for the replies.
Posted via Mobile Device

Re: Rear Suspension Opinions
 

I found It

Thanks for the help 1984 GMC stock suspension, 396 small block with a Bowtie Overdrive 700r4 with a Moser Dana 60 rear-end
4.11 gear, and CalTracs bars for suspension help. 1.36 60ft with M/T Drag Radials, 10.3 @129 on pump gas and 150 shot.
( by the way 4500lbs street truck)

http://i8.photobucket.com/albums/a48...i/myersGMC.jpg

Re: Rear Suspension Opinions
 

Very nice
Posted via Mobile Device

Re: Rear Suspension Opinions
 

I recall seeing that truck run...that thing hauls...

Re: Rear Suspension Opinions
 

Anyone with common sense should know that, but I appreciate your input nonetheless.

Re: Rear Suspension Opinions
 

I honestly didn't mean to state the obvious, but sometimes sense isn't quite so common. Cheers!:o

Re: Rear Suspension Opinions
 

with that much HP a 4 link will be you best bet, far more tuneable than any other option. other options can be made to work, but nothen beat's a "good" 4 link in a drag race application.

Re: Rear Suspension Opinions
 

I'll be getting rid of my brand new KP 4-link, never opened, if interested.

Re: Rear Suspension Opinions
 

I agree. It will have to come with CONTINUAL upgrades (lol). I am still trying to get out of hock after buying the fuel system, electronic boost controller and the Digital 7 plus igniton set-up. Whew! :chevy:

Re: Rear Suspension Opinions
 

Link to set-up?

Re: Rear Suspension Opinions
 

here it is
http://*******************/4-link-kit...ize-4-link-kit