Hahaha so all you experts tell me why lower links is better..
Also its funny you say the who'd Internet says lower the lower links there are plenty of pros running high lower links..
It's kinda sad how this forum is turning into this.
People saying you have to do it this way, but I don't know why you have to
You don't have do to everything the same as the other guy..
Any real insite on reasons why I can't run my links like this please speak up
I can run them higher in my frame.. They are flatter and longer
I'm not an expert but as far as I can tell those are good things
Dude, I'm not trying to be unfriendly. You must know something is not quite right, because you keep bringing it up. Just about everyone tells you to lower them, but you don't. Then you post again looking for reassurance that you're doing this right. I really am trying to be helpful. The way you are building it will probably work, but it could work better with the links lower.
1. You want your links this high because you want them perfectly flat. The reason this is good is because you get a low anti-squat number in your calculator, which leads to good handling characteristics. You get less hopping, less jacking up of one side on steep ascents, etc. You can eliminate all these concerns by running the lower links from the center of the axle tube to the bottom of the belly, and the top links parallel, and a few inches above the top of the differential. Your anti-squat number may not be as low as you have it now, but it will be plenty low enough to work perfectly. From your four-link thread it looks like your frame will be 21" off the ground, which is perfectly reasonable. It says your lower links are at 24". There is no reason for this. Lower the frame side mounts three inches to the same height as the frame, and you can lower the axle side mounts 3 inches with no functional change in anti-squat.
2. You want your links this high because you will get a high roll center, and a high roll center means stability, right? Stability is not just determined by the roll center. It's also determined by the center of gravity. By running your upper links so high, it requires you to move everything above them up just as high. Your fuel cell will be way up high, along with everything else that is mounted above the rear axle. I would argue that center of gravity affects stability more than roll center. Move the upper links down and you'll get a little lower roll center, but you can also get a lower center of gravity, that will offset the change.
3. Compression travel. It's my understanding that you're building this with the intention of doing some racing with it. Racing these days means jumping, and if you're jumping you will need considerable compression travel. With your upper links so high, you will have little room for compression travel without building everything else way up high too (see point #2). Move the links down and you will have more room for compression travel without making your center of gravity higher.
4. Strength. See Bob's post. The taller you build the mounts the more leverage your axle has on them. Building them as tall as you are is going to put a great deal of stress on the bridge you're building. It is very likely you will find it's weakest spot the hard way.
5. Drive shaft protection. One of the nice benefits of building lower triangulated links is that your driveshaft gets protected. You can slide your lower links over rocks all day long without worry, but if you bump your driveshaft into a rock once just a little too hard, it'll tie itself into an instant knot. In your case, you're building the lower links up above the driveshaft, and you lose the protection.
As for doing things the same as everyone else, I'm with you. I do things differently a lot too. Innovation is how we've gotten to the point we're at now. When I proactively seek out advice from people on something I'm not sure about though, I try to listen to the advice that's given.
There is no reason you
can't run your links exactly as you have them. You can run them this way, and it will work fine. Overall, it will work better if you lower them. I really think you are relying too much on the link calculator without considering the rest of the system. There is a reason so many veteran builders have told you to lower them, and there is a reason you have second-guessed your decision to build them this high so many times.
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