Diff drop for 3.5 inch lift?

Check out
https://www.headstrongoffroad.com. OME makes lift coils.
I would suggest a 2" lift because our truck already come 1" higher than the previous Gen.

Many thing/issue can come into play when going to a 3" lift on this gen Tacoma. (Because it would be like a 4" lift on a 2nd gen Tacoma.)
Binding of the CV axles at full droop, CV Boot wear, Needle bearings, etc....
I'm running a 2" lift on mine. (Bilsteins with 2887 OME coils) Fits 285's without any issues. I wheel my truck sort of hard. (I've actually needed to replace my front cab mounts already with less than 5k miles on my truck)
For looks? Yes a 3" lift would look much better than my 2" lift. But performance is better with less lift due to better range of articulation of the stock components.
Think of a 3" lift as hiking wearing high heels. Your range of articulation is hindered. (Prone to wheel lift off)

But again you need to figure out what your end goal is, and go from there.
If what you want will require cutting and welding? And possible reduction in component life span. Plan accordingly from the beginning and you'll end up spending less money in the long run.

 

If it comes with a 1 inch lift do you know where the lift is? If I took off the the factory struts and put in a 3 inch strut wouldn’t it be lifted just 3 inches instead of 4?

 

That's a question that doesn't come with a simple answer.

Our 3rd gen coil springs are taller then the 2nd gen by about .5".
So by using the factory coils on a Bilstein you will get 2" lift over stock, but be 3" taller than the 2nd Gen.
If you install the 3rd gen strut on a 2nd gen Tacoma it will lift the truck 1".

So basically our 1" higher stance is due to the longer coils from the factory.

 

I know this trend is old but just goingbto time in and say jba are the best control arms on the market and spc are garbage. For all those that say jba moves the wheel tords the cab is wrong they actually work the opposite and move the wheel away from the cab mount.

 

I know this post was started a few years ago, but I've also seen this stated by others more recently too...

Where did this info come from? (it can't be just the coil springs, can it?)
When my '18 was stock, the front CV shafts & steering were dead-flat-horizontal (there was no angle on them whatsoever). If the 2nd-gen (same frame & config) was an inch lower, the CVs & steering would actually have negative angles on them (the differential/steering rack side being below the wheel side). Toyota wouldn't do this, would they?? It'd be bad for ground clearance, and would just look bad too. What am I missing?

 

Did you actually even read that nonsense? ("This is because higher caster angles push the top of the wheel hub toward the rear of the vehicle, effectively moving the wheel forward in relation to the cab.")

I hope you will realize your mistake of trusting A.I. bots before you do something really dumb.

Real human brains here: Adding caster at the UCA does infact move the wheel backward (though the movement is not near as much as the inverse movement is when adding caster at the LCA).