Rear Block Stock Shock TRD PRO

So I emailed, as advised in a previous post to do, Headstrong Offroad. They responded very quickly BTW.... anyway I asked can I use a small block like a 1 inch in rear with my stock FOX shocks just for a slight rake....here is the response:

"You may be able to get away with something small but I am not sure what the travel numbers are on the pro suspension and how they compare. You can take the rears off of the truck and measure the extended and collapsed length and cross reference it to something like the Bilsteins just to be safe. Generally stock rear shocks are not meant to accommodate added rear lift though."

My problem is I thought I would get a difference response. Readylift uses the stock shocks on their front/rear block/spacer lifts and so does every other Brand I see as well.....I guess I just assume that you could use the Fox shocks standard on the PRO as well. If the TRD Offroad can be used I would have thought Fox would have been ok as well.

Looking for any feedback, thoughts, opinions....

 

No vendor will say yes that’s fine, even if it is.

That’s a liability issue. Most shocks can handle 1” of lift, but I’ve never seen anybody say more is safe.

You have to inherit the risk, modding is DIYOR.. do it at your own risk.

 

thanks buddy

 

the TRD PRO shocks are the same length as standard TRD shocks for the rear. a 1 inch block will be fine. there will be no problem with that setup. if you were going with an AAL or leaf pack or a crazy thing like a 2 inch block they would be getting short. when the rear shock is too short it tops out and clunks then the shock eventually breaks. go for it and don't worry! if you want longer shocks later you can get some Fox for 2-3 inch lift and bolt them up to get more travel.

 

But... As a position sensitive damper, you will likely be moving out of the ride height zone into a firmer zone on the shock.

 

hey OP, just go for it! the above is like saying your truck might not ride good with stuff in the bed because the shock is an inch down.. of think of this, when you have even something as simple as the factory bed mat in the bed it drops 1/2inch, or a year after you buy it and put a bunch of miles on your leafs lose a little ride height from new so that little block just gets you a little above your new starting point.

 

I didn't say to not go for it, just providing thoughts as the OP requested. Not having taken one apart, I can't say for certain, but I'd guess Toyota put the ride zone such that it could accommodate a bit of load in the bed. This, of course, is the advantage to factory provided bypass shocks... Everything is designed and set up to work together.

 

Fair enough.

Go for it OP! You will be fine, nothing. Is going to break. If you find the ride is impacted significantly you can always get longer rear Fox shocks. But you might even like the ride better, it is all up to you.

 

The problem with any lift or drop is you don’t want the shock to be what limits the travel in either direction, as you will either brake the shock or ware it out very quickly. So with a lift block, you have increased the down distance the shock needs to extend to. You want the spring to limit the down travel and not the shock. So for a lift block, you need to get the fully extended shock measurement, and the measurement of the shock mounting location with the axle fully extended. Both are easy to get with a few tools and jacks. I would assume headstrong has the latter from what they are asking you. From those measurements you can get a good idea (but not perfect) of how the 1/2 block will effect the shock.

They do make shock extenders for this exact reason, so that may be an option for you, but you should also read up on those as well.

 

One of the people on the site measured them. Here is the info. Do some googling and you can compare to other shock lengths from the aftermarket.

"Thanks! So I noticed the list had the rear stroke and collapsed length mixed up. Basically, these are similar length as base Taco suspension.

I also converted to inches:

Extended Length
Front: 555mm (21.85")
Rear: 595mm (23.43")

Collapsed Length
Front: 443mm (17.44")
Rear: 357mm (14.06")

Stroke
Front: 112mm (4.41")
Rear: 238mm (9.37")"

 

They're longer than these so you should he good.