If I plan on going with custom springs is there any reason why I should put the shackle flip on. I already have the shackle flip and it keeps asking to be installed.
CK5
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Custom springs with shackle flip?
- Thread starter LVJimmy
- Start date
How much lift are you planning on in the back?
4" lift 33" tires on a '71 Jimmy
If they're our springs, you'd need the flip. The '67-72 trucks have more arch in the rear springs than the '73+ square bodies. We can do up to ~2-1/2" rear spring on the 1st gens, and more like 4" on the square bodies.
Basically the really soft springs start out with a lot more arch than normal because they'll compress more under the weight of the truck (because, well, they're soft). Above those lift height limits, you wouldn't be able to install them because they'd have too much arch. We can do more lift in the front than the back, fortunately the shackle flip is an easy way to make up the difference out back.
Basically the really soft springs start out with a lot more arch than normal because they'll compress more under the weight of the truck (because, well, they're soft). Above those lift height limits, you wouldn't be able to install them because they'd have too much arch. We can do more lift in the front than the back, fortunately the shackle flip is an easy way to make up the difference out back.
Thanks Chris. I'll install the flip.
Aspects that I can think of.
The shackle flip brackets are probably in better shape and more durable than the factory pieces. But depending on how you are going to use the truck, this may not be a concern.
The tail of the springs hang down more with a flip.
The flip will keep the springs flatter.
There could be a small increase in twisting forces on the rear frame rails during cornering.
The pinion will need shimmed either way.
Either way, I would plan on moving the axle back 1" to keep it centered in the wheel well more.
The shackle flip brackets are probably in better shape and more durable than the factory pieces. But depending on how you are going to use the truck, this may not be a concern.
The tail of the springs hang down more with a flip.
The flip will keep the springs flatter.
There could be a small increase in twisting forces on the rear frame rails during cornering.
The pinion will need shimmed either way.
Either way, I would plan on moving the axle back 1" to keep it centered in the wheel well more.
I'll pay attention to the pinion angle. I figured I would have to move the axle back an inch since it already sits pretty far forward in the wheelwell.
Thanks,
Thanks,
I thought that you probably already had some of that in your plan.
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Little late to this party. All I will say is once you do it you will be damn happy you did it.
I hope so.
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This is what you can look forward to
Coll view and a great video. I hope it works as well as yours.
