Bilstein 4600

I have heard the hitachi's are firm and this is why i am wondering if I should use my 2015 TRD sport shocks with 2016 sport springs.

 

I can use my old springs with the 5100's? theres a little over $100 difference between the 4600's i found and the 5100's.

 

Yes

 

I had originally gone with 5100s on all 4 corners. Front are set at 0 matched up with OME 883 coils to level out the truck . Rear is stock higth. After two sets of 5100s leaking in the rear I decided to go with the 4600hd no more leaking . I be leave the 5100s are meant for a lifted and being my rear was not that's what caused them to leak . The 4600hd ride just as good as the 5100s . Hope that helps !

 

Lifetime warranty regarding what? Leaking oil seals and worn out bushings?

 

OP, just keep in mind that swapping out the shocks won't help with sagging at all. Ride height is determined by the springs so while you may want a smoother ride with new shocks that will still leave you sagging in the front end

 

Gonna get my soap box out for a minute.... This doesn't apply to anyone in this thread, just a bit of commentary on suspensions in general....

I spent a few years as a suspension tech for Honda, albeit on dirt bikes. Applying what I learned there to trucks isn't as much of a stretch as you might imagine.

Suspension and ride quality is a combination of ALL components, likely no better as a whole than the weakest link. Coils/springs/leaf's support weight while allowing flex. When you compress a spring, it naturally want's to return to it's original length/height. That comes with the release of stored energy called rebound. There is the most under-rated difference in what most shocks can and will do for suspension. Without proper rebound dampening, you get a "jackhammer effect" AFTER the bump is encountered. Shocks dampen the compression, and dampen the rebound. A given shock absorber will react differently to varied spring rates, varied weight of vehicles, and varied speeds at which the suspension is impacting "bumps". So there is a different reaction to impact, then a different reaction on rebound, based on speed, weight, and spring rate.....Tires also effect the suspension characteristics. Most commercially available non adjustable shocks are designed to work in a range that covers "average" spring rates, "average" vehicle weights, and speeds up to what is normally seen of highway driving.

Suspension geometry can (and does) effect ride quality to a great extent.....not just handling/steering. Components such as control arms, sway bars, spindles, hubs, wheels, etc, can make even the best coils/shocks perform better or worse. Poor geometry can result in a vehicle that handles "nervous", which can effect the way shocks perform. By the same token, bad shocks can cause that same nervousness, which makes for an ill handling vehicle. Long story short there, even the best shocks on earth can't correct an evil handling vehicle with improper geometry.

Another very important factor is production cost....of the shock.....and of the vehicle as a whole. In spite of the old saying, you don't ALWAYS "get what you pay for". But, cheaper, lower end shocks probably won't perform at the levels of higher end, higher priced shock when pushed to (or beyond) their limits. This is a broad strokes generality, as opposed to a carved in stone "fact" though.... Price doesn't always determine the level of quality...

There's "good", then there's "good enough".....How "good" do you need? Some very high dollar components developed for racing will deliver far more performance capabilities than a low priced OEM "replacement" component. Question is, do you ever need the added performance they're capable of delivering? Do you ever push your suspension beyond the safe limits of that low end or mid range quality component?

IMHO, the vast majority of suspension component buyers are purchasing beyond their actual needs. (in the name of status?) Nothing WRONG with that. Just that it's a matter of choice rather than a matter of need. With that said, overkill is usually better than "underkill"....

In short, it takes a sense of balance between all the components to make a vehicle ride and handle well. Just throwing one high dollar component at an otherwise "mediocre" suspension won't correct it's ills.

 

Good info thx

 

@Bluegrass Taco I have read here on TW that the 15 and 16 springs are the same length but the 16 spring gives 2nd gens an inch lift. As I understand it the spring rate is adding the lift. Do you think OEM 2015 Sport Billys will be ok if joined with 2016 Sport Springs? My concern is that the 2015 billys aren't valved correctly for the additional spring rate? Not really looking for technical data just an opinion.

 

Not sure I have enough data at this point to form an opinion on that. Do you know the spring rate on the 2016 coils? Just a knee jerk reaction, they SHOULD be OK....But that's strictly a guess on my part

 

717 per toytec.

 

That is WAY stiff of a spring rate for a 4600 shock. OME 886's are 660lb rate and are considered too stiff for 4600's or 5100's....and therefor not recommended.

If those numbers are correct, that spring would overwork the rebound dampening on a 4600 or 5100 with valving for a gen 2 Tacoma. I've been hearing Bilstein is issuing a new part # for the 2016 shocks.....Maybe this being the reason why?

 

I better bolt up the Hitachi's!

 

I called Bilstein two weeks ago and they were still in R&D for the 2016 shocks. No help!

 

Read through the first post on this thread:
https://www.tacomaworld.com/threads...2016-tacoma-presented-by-toytec-lifts.395798/

Toytec did a great write up explaining why NOT to combine stuff made for '16+ trucks with stuff for older models and give a picture of the springs all next to each other showing that the 16 springs are longer

 

@TOYTEC I have read your thread on lifting a 2016 and i am wondering if i put a 2016 sport suspension on a 2015 will it be ok?

 

watching a video on the US bilstein plant where they make bilsteins and they show the monotube versions like we all know (4600, 5100 etc) but some of them they where assembling where twin tube low pressure shock.
it it possible the stock TRD/toyota bilsteins are actually not the the monotube but are instead the low pressure twin tube? And the twin tube where much thinner than the monotube , just like the toyota bilsteins are thinner than the 4600 Hd's.
Anyone ever taken apart the toyota bilsteins??