Project FD RX7 Restomod: Part 16 – Installing the Ronin Ford 8.8 IRS Mount Kit using DSS Axles

FD RX-7 rear subframe with Ford 8.8 diffIn order to install and locate the Ronin Speedworks Front Mount Support Bridge, we had to bolt the rear of the differential into the stock mounts on the subframe.

FD RX7 Ronin Ford Explorer 8,8 IRS MountNext, we bolted the Front Mount Support Bridge to the differential, lifted the front arms of the subframe until the top of the subframe was level with the ground, and used a small scissor jack under the front of the differential to dial in the pinion angle.  Once the pinion angle is set to 2.5-3-degrees up (as per the instructions), we were able to tack in the support bridge.

Tack welding Ronin RX7 Ford 8.8 IRS Front Mount Support BridgeWe tacked the support bridge to the subframe.

Finish welding Ronin RX-7 Ford 8.8 IRS front mount support bridgeOnce all four corners of the support bridge were tacked in place, Mario at TSR Fabrication did the final finish welding.

FD RX-7 Rear Subframe Ronin outside braces welded inWe then finished the welds on the lower inner Subframe Reinforcement Plate.

FD RX-7 Rear Subframe Ronin Outside Braces weldedWe also finished the welds on the lower outer Subframe Reinforcement Plates.

4 comments

  1. This is vastly superior to any other 8.8 conversion I have seen for this car. Now to convince Jeff to do this to Project V8 FD!

  2. Great write-up and an impressive kit.
    Although, it seems the support bridge could be easily revisioned to be at least half an inch lower so it wouldn’t necessitate beating up your pristine RX-7-s body.

  3. Damn, great progress. 🙂

    still loving the fact that this went from rest-mod to restless-mod.
    been following from the beginning.

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