Bilstein 5100/Toytec Coil Sag

So I've had this Toytec Ultimate 3" lift with Camburg UCA's on my truck for about four months now with 285/75/16's. Originally I had plenty of clearance and my truck sat fairly level. Within the last month or so it's sagging to the point where the tire rubs the pinch weld and the cab mount when turning my wheels on level surfaces. I've added an AP Apex Aluminum bumper (55 lbs) and a Warn XPS 9.5 (78'ish I think). I plan on folding the pinch welds over and cutting the cab mounts in prep for AP's LT kit, but I'd like to raise the front since it will be another month before I close on my house and have a garage available.

Is the addition of 135lbs to the front of the truck enough to cause this? Toytec warns that raising the clip above the 2nd position will cause damage, but I've read through numerous threads where folks claim you can raise the clip as long as you don't exceed 3", or to just add spacers. What are the dangers or raising the clip position to bring it back to 3" up front? Ideally I'd like a fix that I can do in a hotel parking lot without a lot of tools. It would be nice if I could just put a spring compressor on the coil and move the clip up so I'd just have to remove the wheel instead of the shock.

 

not sure what those springs are rated for, but if memory serves correct, the spring compresses and inch for every hundred pounds or something like that. I just put icon 700# coils on my fox 2.0s. if i had the coin to do it all over again, i would have went with king.

 

Why do you say that? I just ordered the Fox 2.5's for my LT. An inch per 100lbs seems like a lot, but that would explain the sag.

 

Sent the folks at bilsteinlifts an email to see if the weight was the cause of this. They asked for the hub to fender measurements. The rear is 25", which seems about average with the dakar leaf pack going off: https://www.tacomaworld.com/threads/2nd-gen-ome-dakar-hub-to-fender-measurements.173193/

I Didn't realize how low the front is now, it came in just under 22". Can't seem to find a measurement for the 5100's w/ toytec coils on 2nd clip/spacers should be though. Anyone that can check?

 

i noticed the sag about 100 miles after my suspension was installed. i could only imagine how low it'd be with a bumper/winch combo.

 

I've noticed the same thing and I have the same setup as you, I have about 20,000 km on my lift so far and I added a relentless fab aluminum front bumper but no winch. I'm currently sitting at 22 inches hub to fender front and 24.5 rear. I'm going in on Tuesday next week to get the perches set to the second clip to help level it back out, unless you all convince me bumping it one will be enough. I will keep you posted on how it goes!

 

I should've probably done my research and checked how the additional weight would affect it. I'm just surprised that such little weight would cause it to sag significantly. It looks like getting the Fox 2.5's are going to take a lot longer than expected.

 

OME 886's are designed for additional front weight on Tacomas.

 

i have 886 with my bilsteins bottom setting no sagging

 

The stock springs are rated to 540# from what I understand, and the lift you've got comes with 600# springs. So I would expect a fair amount of sag by adding 135# to the front end.

 

That's a good point. The parts I added totaled about 135lbs. If you consider the +60lbs from the beefier coils, we're only sitting at an additional 75lbs for the Toytec Ultimate setup. Then deduct the weight of the OEM bumper, fog lights, mounts, braces, inner fender wells, and skid plate. I'd say all of those would add up to at least 25lbs. So in reality it is only 50 pounds or less over intended weight, right?

 

It's not just the weight, it's where the weight is located. Any weight added at the far ends of the vehicle is going to have a bigger effect on the suspension than weight added in the middle.

 

Do folks typically do the math for weight distribution before deciding what coils to use? Haven't found any threads discussing that yet. I can't see the variances between 3' to 2' of weight in front of a shock really making a large difference. For a truck that is designed to haul up to three additional passengers, potentially 900lb+ in America, I can't see 50 lbs as a legitimate reason for suspension to drop two inches. Obviously it happened, and I'm going to get adjustable coils. It just seems like this setup isn't worth it when you can pay a little more for a fully adjustable setup.

 

https://www.pedders.com.au/news/techstop-5-effect-weight-vehicle-dynamics#

 

I'm not disagreeing that weight and distribution of it affects the suspension. I work in aviation and am familiar with the importance of weight and balance. All I said was:

I'm not saying it doesn't make a difference. I'm only saying with truck suspension I shouldn't lose an inch of clearance if I don't shit before I head to work.

 

well just an update got the truck back on Tuesday after setting the bilstiens to the 0.85 setting, I would say i'm leveled back out 24.5 rear, 23.9 (up from 22)front hub to fender gap. I may loose a little in the front when I add the winch, but overall i'm happy. however I still have stock upper arms and I need to get some aftermarket UCA probably within the next year to get it back in spec but i'm only out on my camber by 0.1 which isn't a big deal to me.

 

That's great it worked out. I'm jealous!