If you don't plan on having A\C or your montero doesn't have A\C already just put the rad infront of the support and the hoses can run thru where the stock rad sat into the new spot thats what this guy did on his V8 swap in aus i don't have the picture any more but it came out better than hacking up the rad support.

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89 2 dr turbo diesel
89/88 "Backwoods sas"