I installed jspec rear ladder bar and JGY custom front ladder bar at the same time and this is a write up for the front. I also did a write up for the rear and this is it.
zerothread/282798
Front ladder bar is a direct bolt on without any modification, so there's not much to it, but I figured pictures would help a lot. I think this is also a copy of Do-Luck front ladder bar. I searched and found out that Do-Luck s13 front and rear bars have been discontinued. It came powder coated blue and with 4 bolts.
I compared it with jspec rear ladder bar side by side, and the JGY front bar has thicker bracket.
A local chrome plating shop gave me a real good deal, so I went ahead and did the chrome plating for it.
There's this thing sticking out from the plate and that'll go to the hole on the frame and you use one bolt on each side to install this bar. You will have to remove these plastic plugs from each side frame.
You put a bar in between the frames and turn this big nut in the middle to push the bars to left and right. This way brackets will seat on the frames tight.
And the bolt goes to this hole on each side.
That's about it. It clears everything, so there's no clearance issue. Your oil pan will hit something first before this ladder bar.