Rear speed sensor spacer needed for lift or more travel?

Hi folks,
Was reading the install for the TRD Pro suspension install
http://toyotaparts.sparkstoyota.com/install/PTR13-34140inst.pdf
and noticed on page 7, there is a spacer for the speed sensor harness that sits on the rear axle. I'm guessing its for the added travel since its suppose to be about 1-2" more?

Anyone install one of these? I haven't really come across anyone mentioning it when installing something like 5100 or 5160 when these also add a little bit of travel or those doing rear lifts.

 

Coachbuilder and OME make some. Depending on your lift in the rear and what you do with the truck it’s not necessarily needed. BUT for 20 bucks-ish it’s a pretty good “insurance mod”

 

Yeah, I highly doubt I would go full droop on both rear wheels, it will on a hoist at my mechanics ..etc but I figured since the 5160 is designed for up to 1.5 lift, I assume its essentially adding that amount in travel.. Wouldn't hurt to have it I guess.

I can't seem to find it on Ekstrom site. Do you know what its called or can I trouble you for a link?
Thanks

 

https://shop-coachbuilder.myshopify...ke-abs-relocation-kit-provides-2-25-of-length

 

Awesome..thanks.