Sponge60
Well-Known Member
I've noticed my 3500 SO downshifts into 2nd gear really hard occasionally. It's happened while towing a fifth wheel RV and during normal unloaded trips. Happens infrequently. Only happens going back into second. I usually keep the exhaust brake on all the time. Truck is bone stock, 9500 miles. Anyone else have this issue? Is it a concern?