These are a weld-in sheetmetal kit that allows the use of a pair of rear lower trailing arms to be used as uppers in your AE86/KE70/AE71 this drastically improves your suspension geometry and removes the "wrapping" effect on your diff that comes with the factory unequal length trailing arm setup. The sacrifice is that these use up your back seat area so no more passengers back there. But if you're looking for this type of modification I assume passengers are a thing of the past anyway.

These have three height options for the arm pivot point and access holes with bolt on covers to make adjustments and arm installation easier.

This kit does not come with the trailing arms, just the sheetmetal kit itself, you can use any lower arms that you desire, wether they be OEM or aftermarket adjustable items.

These are not always kept in stock but usually only a few weeks turnaround time at worst case.