superdog405 Posted March 31, 2011 Share Posted March 31, 2011 Hi guys, wondered if anybody ever ran into this. Have a 8LL that repeatedly pops out of 4th & 8th gear thoughout the day. Loaded or empty, on the fuel or not, just doe'nt want to stay in that hole. Replaced detent springs in shift tower,but did'nt make a differance. Could the shift forks in the trans. need replaced ? Thanks for any help,Rich. Quote Link to comment https://www.bigmacktrucks.com/topic/18542-transmisson-popping-out-of-gear/ Share on other sites More sharing options...
Bollweevil Posted March 31, 2011 Share Posted March 31, 2011 Hi guys, wondered if anybody ever ran into this. Have a 8LL that repeatedly pops out of 4th & 8th gear thoughout the day. Loaded or empty, on the fuel or not, just doe'nt want to stay in that hole. Replaced detent springs in shift tower,but did'nt make a differance. Could the shift forks in the trans. need replaced ? Thanks for any help,Rich. The fork may be bad also, but the problem is more than likely the main shaft high, or head gear, and it's shifter clutch. When an Eaton transmission begins to slip out of any gear, it will soon round off both the shifter clutch and the gear to the point that it will not stay engaged. A bungie strap or forked stick wont even help. Quote Link to comment https://www.bigmacktrucks.com/topic/18542-transmisson-popping-out-of-gear/#findComment-75233 Share on other sites More sharing options...
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