Originally Posted by WhiteJK
Same problem here with the washboard-shudder. Normally at 40-55mph and backing uphill. I turn off od and this helps a lot. When I'm coming into town from hwy driving(at around 45mph) if I don't turn off od there are times the jk feels like it is going to shake apart if I stay on the gas. I'd take it in but I'm really tired of visiting the dealer and I just don't want to spend the money on a low mileage vehicle, which if I continue to ignore it I'm gonna probably pay more. This started at around 40,000 miles and I now have just over 50,000. I'm starting a help whitejk jeep fund. If I can collect enough money from you guys I'll go ahead and install a v-8 and tranny of you guyses choice.
i have this exact problem and seems pretty common. has anyone here tried a shudder stop additive? we recently added some to a troublesome ford tranny and it worked wonders.
mine started doing this the day after i added a dynomax muffler, coincidence i know, but still weird