the lightforce 170's will fit
the 240's are just wayyy to big
i am looking to replace my lights with some Hella Rallye 4000 Compact's , the good thing is they come with a 100W h1 globe here not the standard 55w one

The Rallye 4000 Compact is the standard to which all other lamps are compared. Used by most of the top Rally and Desert Racers. Now, due to technology improvements in reflector design and finishing, Hella introduces the Rallye 4000 Compact. Only 6.75" in diameter with no loss of performance over the larger Rallye 4000.
The mounting base measures about 2 inches wide and "cradles" the shell in a 5.4 " cup of Aluminum for the most stable mounting systems available in the industry today. The two knurled knobs are the adjustment lock knobs. Loosen these and you can rotate the shell up, down and side-to-side for a full range of adjustment. Tighten them and the shell is snugged into a rubber gasket between the shell and the mounting cup - that lamp isn't going anywhere!
The useful range of the Driving-beam is 2500 Feet they are the same size as the lightforce 170's
http://www.lightforce.net.au/images/dl140170.pdfSo if I read this right the lightforce 170's are the same size as the hella 4000 compacts? because I thought the LF 140's = 5.6 inches and the 170's = 6.6 inches. I want to put some lights in the front holes of my TrailReady bumper and they are saying the max is 4.5 inches????