Ultimate IRS - Supra Tubular Subframe Cradle

This is a complete bolt-in rear tubular subframe for the MKIV Supra (JZA80 - MKIV) chassis. This is 100% chromoly, so it is not only lightweight but extremely strong. The bare stock stamped steel subframe is around 65.2 lbs, this bare subframe is 29.2 lbs lighter, weighing it at only 36 lbs. Combined with lightweight chromoly suspension arms, the overall weight savings will be substantial if you are going to use my entire Ultimate IRS system. This will make the entire IRS suspension more rigid. Removing the play and twist from IRS suspension systems is key in making it work better. The subframe cradle uses all the factory mounting locations to the chassis and  stock locations for all suspension arms. So, you technically could run all stock arms, or re-use the arms you currently are running with no fuss! This is also designed to work with the factory spindle.  For the differential, it also uses the stock mounting locations, so you can use stock differential or any of the aftermarket rea