Join Date: Nov 2008
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Mag-Hytec or factory finned cover....
Engineer's step inside..
So generally speaking fin surface area has a lot to do with heat removal and generally the more fluid capacity you have the bigger "heat capacitor" you have. So I'm attempting to build a G56 "Max Tow" truck. Doing a Southbend organic DD street/towing clutch, a very elaborate dual stage cooler system for the G56 which leaves the rear end. 3.73 gear seems optimum for highway cruise RPM which should generate a little more heat than the 4.11 that comes with the Aisin max tow package. While I don't intend on towing near 40k, I do intend on towing at 32k ish continuously for long trips. Having found out even with a light load on level ground with Delvac overfilled 1 qt the transmission runs 230*, I know the trans is the main focus but didn't want to forget about the rear.
Which cover would yield the most reduction in operating temperature? When you could get the factory cover for $100 it was a no-brainer to go that route. Now they are $200+ and many places that have them advertised that low are out of stock. They are also on MOPAR backorder. You can get your hands on one but the price is close to Mag-Hytec cover. The factory cover has much larger fins and more of them so I would think it would cool better but the Mag-Hytec has a larger capacity.
.....or even better, real world testing results? (grasping at straws)
1996 12-Valve NV4500 RWD 3.54 Club Cab. on 19.5's. 46X,XXX miles and still strong! 2006 4wd Auto Laramie! 287,XXX, So far so good! 2016 Laramie mega cab G56 4x4 dually. Love this one too!