Spring over or spring behind
- Thread starter Tundrajax
- Start date
choppedtop
Well-Known Member
Spring behind lets you set lower. I have no idea which is best. No problems with mine being behind.
If you click on the thumbnail of my axle & look closely, you'll see one of these bolted to the inside of each batwing, and the spring shackle bolts through this piece, with the spring 'eye' on the lower end of the shackle. (Yes, I'm using a Vega box with cross-steer, relocated after that pic.)
For my build I was planning on (and have the components for) going spring over. to maintain a lower stance I have a 5" drop axle and a mono-leaf spring. Two reasons for going with the spring over configuration. First, I was shooting for the shortest wheelbase I could get. Second, in my foggy mind, there had to be a reason the spring behind configuration got the title "suicide"...and I didn't want to learn the hard why.
fordsbyjay
Active Member
old round fart
Well-Known Member
That is what they are called.
Tundrajax
Member
I'm using an original axle. So the bat wing will be bolted to the axle. I'm looking for the bolt that will go in it since I'm going to go spring behind.
Tundrajax
Member
Do you mean the clevis'? They use a pin looking bolt.
Also how is your shock bolted to the shackle? I've seen some on speedway and one likes super cheap an another is 30 or more dollars
The original Model T axle was an I-beam with the spring over the axle and a wishbone to locate the axle side-to-side. I confess my ignorance, but I'm not aware of a way to 'convert' that to 'spring-behind' without a lot of work. Why not use another axle?
2old2fast
Active Member
If the axle in ? is '27 or older , I wouldn't use it , thry're weak & the geometry sucks...If it's '28 [model A] or newer , you cut off the ball ends , weld in threaded bungs for rod ends , then aft of the axle , weld tubes into the bones foe spring pivots ... normally you have to pie cut the bones to get adequate caster
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