Outer Limits 4x4 Board

Anyone using one of these mounted in the original position in a hilux, mines an '88 model yn67. just wondering if it is possible/whats needed to squeeze one in there, height wise i think is the main concern.
by my calcs it will be very tight.

Craig

I have ordered an Optima battery called yellow top 1000.

Length is 254mm, width is 172mm and height is 199mm.

weight is 19,5kg.

55ah, max is 850amps.