What's the diffrence
Thread Starter
|
New User
Joined: Jan 2006
Posts: 5
Likes: 0
What's the diffrence
I am new to the site and have a couple of questions. What's the diffrence between 78-79 and 80 and up suspenion wise? I was just curious because it seems they have bigger lifts available and are cheaper too. Anyway this guy wants to sell me his 6" suspenion lift off of his 78 bronco will it fit? I am getting the rear springs and blocks front springs and radius arms. I know I will need a drop pitman arm and have to lengthen the rear drive shaft, will I need to lengthen the front as well? What about brake lines? What else would I need? ANY help is greatly appreciated!!!
Elder User
Joined: Jan 2006
Posts: 544
Likes: 0
79 and older trucks all use a solid axle in the front. The half tons and broncos all use a dana 44 on radius arms with coil springs. The 3/4 and 1 tons use either a dana 44 or 60 and its on leaf springs.
1980 and later trucks, all 1/2, 3/4, and 1 ton use an indipendent front end known as the TTB. The broncos and F150 use coil springs with radius arms and longer axle beams and the F250 and F350 uses leaf springs with shorter axle beams and no radius arm. It wasn't untill 1986 when Ford went back to the solid axle on the F350's.
So the suspension systems are completly different. Lifts wont interchange on the front, but they might for the rear. I don't know for sure.
1980 and later trucks, all 1/2, 3/4, and 1 ton use an indipendent front end known as the TTB. The broncos and F150 use coil springs with radius arms and longer axle beams and the F250 and F350 uses leaf springs with shorter axle beams and no radius arm. It wasn't untill 1986 when Ford went back to the solid axle on the F350's.
So the suspension systems are completly different. Lifts wont interchange on the front, but they might for the rear. I don't know for sure.
Post Fiend
Joined: Nov 2001
Posts: 5,871
Likes: 0
From: Coutts Canada
Actually in the rear the will, in the front the springs you can use (height may be different), the radius arms will be different, and you will also need drop brackets for the ttb pivot points.
Elder User
Joined: Jan 2006
Posts: 544
Likes: 0
Originally Posted by mustange70
Actually in the rear the will, in the front the springs you can use (height may be different), the radius arms will be different, and you will also need drop brackets for the ttb pivot points.
Now it could be done, to swap springs, but you will have to fabricate a new lower mount that would bolt on to the radius arm that will accept the different spring.
I have seen it done when using TTB springs on solid axles, but never the other way around.
Post Fiend
Joined: Nov 2001
Posts: 5,871
Likes: 0
From: Coutts Canada
Ahh, yeah i know on the 2wd trucks its all the same as i found out when messing around when i lowered my 82 flareside, and i have seen a few trucks in my area running the older style springs (talked to them how they lifted the truck), but i never did take a look at how they mounted it to the axle, i just assumed it was the stock unmodified setup.
