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Shackle flip and Switch from DIY4x : Tech review post 146

cybrfire said:
Yep, I know about that review. Last time I looked it is an unfinished article. He had plans for 56's and the final photos are of the bracketry reversed for the 56's with 52" springs. Making for a bad shackle angle. Not exactly the advertising we're looking for.

You can notch the flip without issue. Personally I'd ditch the hitch simply for the fact, the hitch is nothing but a tail dragger offroad and I personally wouldn't be doing double duty, towing and offroading. Just not the way I build them.
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I knew I'd seen that review before...just browsing thru your site and remembered I found it in your tech tips section...so, umm...nevermind :o

Yeah I hear ya on the tail dragger. I definitely don't do any heavy duty towing but the occasional ability to pull a small utility trailer or aluminum fishing vessel around is nice...I have a feeling the flip will win out.

Thanks again for the quick feedback.
 
If you are still looking for a write-up how about this one?

The flip is done, I just need to finish writing it up. I'll probably also switch to a longer shackle and maybe add an Easy Inch.
 
I have maybe a strange question. I am building another service truck that will have a utility body and lots of weight, but wan't to lift it about 4" because it will travel to remote cabins and thru deep snow.It is an 80 3/4 ton with 56" rear springs. The shackle flip and switch clearly is a beefy piece, but my concern is with the on road manners with an 8-10K# truck.
Does anyone have any feedback for this sort of use?Also does DIY4X sell all the components to get the truck up in the air (lift "kit" similar to ORD)? Same question about the front, I like the idea of the B-52 with a winch mount for this truck but am I going to get to much flex? After much research I would rather spend my money with Kert's company as his products seem superior,personalized service and quick responses on this website have me sold:bow:Also would like to support the little guy(cause I'm a little guy)
The truck is down to bare frame so I guess it's decision time.
Thanks Guys
Mike
 
plumber mike said:
I have maybe a strange question. I am building another service truck that will have a utility body and lots of weight, but wan't to lift it about 4" because it will travel to remote cabins and thru deep snow.It is an 80 3/4 ton with 56" rear springs. The shackle flip and switch clearly is a beefy piece, but my concern is with the on road manners with an 8-10K# truck.
Does anyone have any feedback for this sort of use?Also does DIY4X sell all the components to get the truck up in the air (lift "kit" similar to ORD)? Same question about the front, I like the idea of the B-52 with a winch mount for this truck but am I going to get to much flex? After much research I would rather spend my money with Kert's company as his products seem superior,personalized service and quick responses on this website have me sold:bow:Also would like to support the little guy(cause I'm a little guy)
The truck is down to bare frame so I guess it's decision time.
Thanks Guys
Mike
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Mike,

Why don't ya give me a shout at the shop and we can discuss in some greater detail.
 
cybrfire said:
You'll get approx. 4" with the shorter and 5" with the longer. They can be done with any length shackle you want within reason of course. Those listings on the website are the shackles that we keep on hand.
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That being the case, and considering my Blazer is a little saggy with the 4" rear blocks as it is, would you recommend 4.5" shackles and a zero rate or just running the 6" shackles?

This is with the standard Rough Country 4" lift springs up front.
 
cdoggwsu said:
That being the case, and considering my Blazer is a little saggy with the 4" rear blocks as it is, would you recommend 4.5" shackles and a zero rate or just running the 6" shackles?

This is with the standard Rough Country 4" lift springs up front.
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I'd go the EZ inch route. Longer shackles can have unintended consequences.
 
cybrfire said:
Longer shackles will always tip the pinion up more than it currently is on the shorter shackles. If your angle are good now, why mess with them.
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Hmm...I actually need to improve the pinion angle a little. How much tip up are we talking? Will the 4.5 and the ez-inch tip it up a little on their own compared to the 4 inch blocks I have now?

As of now the angle is enough that I get a little driveline vibration around 55 mph. It looks like it's about 10 degrees on both ends. Is that the correct place to measure?

angle.jpg
 
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With a non-CV shaft that should be about perfect. You might even want the pinion down a degree or two.

With a CV shaft you'll want to go up 8-9 degrees.
 
BGKYK5 said:
With a non-CV shaft that should be about perfect. You might even want the pinion down a degree or two.

With a CV shaft you'll want to go up 8-9 degrees.
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Yeah, I stand corrected.

I just read the article over at http://www.4x4wire.com/tech/pinionangle/, and it would appear that is the case. I was under the impression it was more important to point the pinion at the t-case, but mine isn't dropped at all so it's pretty much parallel with the frame.

The pinion is pointing up slightly at the moment, which I would assume gets worse with axle wrap.
 
Bumpin' this to the top by request.

You can also see it here at www.diy4x.com

available for

69-72's.
73-87's both 1/2 and 3/4 ton
73-87's 1 ton
we've released a Dodge unit. Some debate as to year range but so far we believe this will fit Ramchargers and pickups from 1972 - 1993.

We also have a prototype out there for a ford and another for a 1993 full size chevy. Working on completing these with the help of some customers.

 
What's the difference between the "one-ton" version & the regular version? I have a line on a set of the "one_tons" but I have a blazer. Will there be any issues?

Thanks,
Buddy
 
BUDDY said:
What's the difference between the "one-ton" version & the regular version? I have a line on a set of the "one_tons" but I have a blazer. Will there be any issues?

Thanks,
Buddy
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1 tons are narrower than others to put the rear springs inboard slightly more. Remember the narrow spring perches compared to the 1/2 and 3/4 tons? Its all in the spring hangers that determine the perch widths.
 
thatK30guy said:
1 tons are narrower than others to put the rear springs inboard slightly more. Remember the narrow spring perches compared to the 1/2 and 3/4 tons? Its all in the spring hangers that determine the perch widths.
Click to expand...

There you go then. Thank you for the clarification & now I know that those won't work for me without twice as much work.

Thanks again,
Buddy
 
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