Forum Discussion
blt2ski
Dec 06, 2017Moderator
I'm still driving a NA7.3 with a 185/336 motor, 7 sp spicer, 4.33 gears, pulling/going down the road at upwards of 26K lbs gvw/gcwr! Not the fastest, but never stalled it out on a steep grade! Did that done that on a few 454 1 tons!
power is one thing, but if one does not have the gears, in both tranny and axels, compared to tire diam to get something up a, in my case, roads to clients homes in the 15-25, one case 33% relm, truck is useless! I don't care if it has the most HP or torque, its useless! Yeah I may get up a 4% freeway grade faster, as my 05 dmax did at 26K lbs, but it only had the ability to pull a 24% grade at 20K lbs, the lowly navistar 30K lbs up a just over 30% grade! So yes, I go slower on thee freeway grade, but do not stall out on the grade getting to the clients home half a mile away or less!
Marty
power is one thing, but if one does not have the gears, in both tranny and axels, compared to tire diam to get something up a, in my case, roads to clients homes in the 15-25, one case 33% relm, truck is useless! I don't care if it has the most HP or torque, its useless! Yeah I may get up a 4% freeway grade faster, as my 05 dmax did at 26K lbs, but it only had the ability to pull a 24% grade at 20K lbs, the lowly navistar 30K lbs up a just over 30% grade! So yes, I go slower on thee freeway grade, but do not stall out on the grade getting to the clients home half a mile away or less!
Marty
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