The Dubeloz Rear Cross Brace for S14 Chassis Nissan:

My RXB didn't fit, so instead of giving up, I decided to make it work.

When I placed the bar into the back of the car (before I modified it), the cross bar ran into the center console, making installation impossible without removal of the console (which I refused to do). Also, it appeared that the bar to flange relationship was off, as the flanges would not sit correctly either.

I started by cutting off the bars from their end flanges. Once I did this, I bolted the side flanges in place, and positioned the bars correctly. I noticed that it was near impossible to retain the stock location, as it would prohibit full seat movement forward/back. I opted to move the bars back on the flange, until they perfectly covered the rearmost large hole. Imp' not sure if it was just a simple weld error, or dumb luck, but the rear most holes are in the perfect spot, so I could move the seat full forward/backward with no hindrance.

After mocking up the bar to plate relationship, I had them tacked welded in place, before removal and having a bead welded all the way around. Caution: Both flange and bars have a laminate on them, to help them appear polished/chrome. This laminate needs to be removed (grinder/sandpaper) before welding, or your new weld WILL NOT stick.

Once I had the bars rewelded to the flange, I also went ahead and drilled out the forward most small hole to accommodate the bolt for the seatbelt anchor. I used a 29/64th bit to do the job, but any drill bit near the size of the stock seatbelt bolt will work.

I also at this point grinded away at the back of the plates, so the there was no excess flange behind the bar. I did this, so I could install the flanges on the outside of the carpet. I couldn’t think of a clean/simple way to cut it, so I figured this worked easiest (I used a razorblade to cut the carpet. One slit, parallel with the frame rail, and I was set.

After getting the bar in place and the carpet back down/around, I turned the middle nut in order to push the bars out into the frame rails, to provide tension into the frame rails. I then locked the jam nuts into the bar.