New 88-98 GM Shackle Flip Kit

[TwiztedEngineering]

Hey everyone,
Just thought I'd throw these pics out for you to look at... They are the screenshots of our prototype 88-98 Shackle flip kit including shackles. I just produced these, and they look really nice - I haven't got a chance to get pictures from the customer of them installed yet though...

Initial pricing looks like the whole kit should retail at about $250. We should be able to make the ealier truck version for about the same price, with similar styling and strength!

-Darren

 

[rdn2blazer]

If I may, You need to gusset the inner tab the the base with a couple of gussets, and having a plate thats like an "L" so it bolts to the bottom of the frame as well. Otherwise you supporting the weight by the 4 bolts.

 

[TwiztedEngineering]

If I may, You need to gusset the inner tab the the base with a couple of gussets, and having a plate thats like an "L" so it bolts to the bottom of the frame as well. Otherwise you supporting the weight by the 4 bolts.

Rrdn2blazer,
I would definitely agree with you on the older GM frames. They are made from a much more brittle steel than the '88 and newer frames. My Shackle flip for those vehicles DOES include that "L" type design with the 6 bolts - I wouldn't even think about doing any other way. As far as these newer vehicles though, GM used a much higher quality steel, and they themselves only used the 4 attachment locations, even for their heavy-duty vehicles. Those 4 grade 8 bolts, with appropriate washers to distribute the load are more than sufficient to support the weight of the vehicle, even 2 would probably do it. The biggest issue on the older frames is that they crack around the bolts if there aren't enough of them, not that the bolts aren't strong enough, but GM thankfully fixed that issue after '88.
Also, I would certainly be willing to add the "L" shaped design to these trucks too, because overkill isn't necessarily a bad thing in most cases, but a ton of these year trucks I see have a trailer hitch that would be right in the way of it.

 

[rdn2blazer]

Rrdn2blazer,
I would definitely agree with you on the older GM frames. They are made from a much more brittle steel than the '88 and newer frames. My Shackle flip for those vehicles DOES include that "L" type design with the 6 bolts - I wouldn't even think about doing any other way. As far as these newer vehicles though, GM used a much higher quality steel, and they themselves only used the 4 attachment locations, even for their heavy-duty vehicles. Those 4 grade 8 bolts, with appropriate washers to distribute the load are more than sufficient to support the weight of the vehicle, even 2 would probably do it. The biggest issue on the older frames is that they crack around the bolts if there aren't enough of them, not that the bolts aren't strong enough, but GM thankfully fixed that issue after '88.
Also, I would certainly be willing to add the "L" shaped design to these trucks too, because overkill isn't necessarily a bad thing in most cases, but a ton of these year trucks I see have a trailer hitch that would be right in the way of it.

Ahh, ok, gotcha, mybad. carry on.

 

[Nebraskaz71]

how big lift do u get?

 

[TwiztedEngineering]

how big lift do u get?

I designed the rear spring bolt location (where it bolts into the shackle) to be exactly 8" lower than the factory location. This will give you a 4" lift if your axle is located in the center of your rear leaf spring (most are very close to this), and also usually eliminate the need for a tapered shim or block for pinion angle correction.