diesel1 Posted May 2, 2021 Share Posted May 2, 2021 Can these trucks be towed if broken down without causing any damage internally? Quote Link to comment Share on other sites More sharing options...
Nick Johns Posted May 2, 2021 Share Posted May 2, 2021 Yes its ok to tow a gmc, if flat towing on a rope the brakes will be heavy with no servo assistance Quote Link to comment Share on other sites More sharing options...
radiomike7 Posted May 3, 2021 Share Posted May 3, 2021 The simple answer is that few vehicles should be towed any great distance without the drive shaft disconnected as there will be no lubrication available for the stationary gears on the mainshaft while the mainshaft itself is spinning. When the engine is running with clutch engaged the gears on the layshaft will be slinging oil in all directions which will find its way to lubricate the journals of individual gears on the mainshaft. I'm not sure what the manual states for towing with the transfer box in neutral or even if there is a neutral available but the problem withe stationary gears and spinning shafts may remain. IIRC the ZF auto box used on DROPS vehicles has a rear oil pump which is driven from the propshaft and the vehicle can be towed providing the box has not developed a fault. Quote Link to comment Share on other sites More sharing options...
Jerry Jeep Posted May 3, 2021 Share Posted May 3, 2021 just put the transfer box into neutral it will be fine pulled a gmc behind my 969 diamond t from Birmingham to Manchester no problem Quote Link to comment Share on other sites More sharing options...
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