There are three magnums xl’s.
A wide ratio w/2.97 low for street/drag guys and two close ratios with a 2.66 low. The one we want is the one denoted “with track gears’’ and has a lower ratio 5th and 6th.
The widely advertised 2.66 has a higher ratio 5th and 6th and is less suitable for track use. Would be nice to know for sure what they have. The only place I have seen the track ratio magnum has been at Kohr. I don’t know if he orders them custom or what but it is not the same as the 2.97 ratio trans. I have had both and there are physical difference beyond the gear ratios, so something different is going on with the track gear box. I’d hate to order one online and install the wrong one…. I also heard that that they were going to start making all the 2.66 boxes with the lower ratio 5/6 but nothing official to my knowledge. A quick trip to the TREMEC site just now shows the higher 5/6 ratios as described, so if there is a change it is not denoted on their website which leads me to believe that Kohr is ordering them geared custom for track use. The one we want has the .80 5th gear.
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‘track gear” trans from KOHR:
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So it appears that Kohr is doing something special….and as I described, at present, there is only one left.