orange rover Posted April 6, 2006 Share Posted April 6, 2006 is there a difference in size/coolant efficiency between the 3.9 auto and 3.5 radiator. i know the 3.9 has the trans / engine oil coolers included but i won't be needing those since i have installed after market coolers, but is the 3.9 any better with respect to cooling than the 3.5? regards orange Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted April 7, 2006 Share Posted April 7, 2006 Sorry, no idea about 3.5>3.9 but on dad's 3.5 we fitted a rad from a 3.5 that had air-con, the rad was noticeably thicker by about 50% extra and it cools really well, even in the mud. If you do this you need the cowling from the new rad or it'll foul the fan if you're using the viscous unit. If you're using electric fans you don't need to worry about it. Quote Link to comment Share on other sites More sharing options...
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