Keith Browning Posted July 2, 2012 Share Posted July 2, 2012 Never seen this before... Have a 2008 F450 that was towed in by the customer with a blown engine. We repaired the engine and discovered that the transmission is malfunctioning badly. On the bench and apart I only find the low/reverse one way clutch has come apart and it also took out reverse planet hub - scored up the splines for the clutches. Neither the driveshaft or axle shafts were removed and the truck was backed into the parking spot when it was towed. It's a very large truck so a flat bed could not have been used nor were wheel dollies. Is it "likely" that the tow took out this clutch? If you rotate the driveshaft of one of these trucks when in the air you can hear the clutch clicking... this is the connection I am making... Quote Link to comment Share on other sites More sharing options...
tonybullitt Posted July 2, 2012 Share Posted July 2, 2012 I have had this before. On mine the trans locked up on test drive. towing company got to pay for remaned trans. Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted July 2, 2012 Share Posted July 2, 2012 Is it a 4x4 and if so was the t-case in neutral? Quote Link to comment Share on other sites More sharing options...
tonybullitt Posted July 2, 2012 Share Posted July 2, 2012 Mine was a electric shift 4x4 no way to put in neutral. Most tow truck drivers know to pull drive shafts. Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted July 2, 2012 Share Posted July 2, 2012 Used to be that sometransmissions had a rear pump driven by the output shaft of the trans. This pump would be enough to charge the lube circuits in the trans even to the point that a car equipped with one of these could be push started. Flat towing is rarely recommended with modern transmissions (FWIW, the Explorer? is no longer accredited for flat towing with the use of the new trans/all wheel drive system). Flat towing a 5R110 and allowing the output ahaft to rotate is going to be a recipe for disaster - no oil flow for lube or heat dissipation is going to make short work of a lot of parts. Quote Link to comment Share on other sites More sharing options...
Keith Browning Posted July 3, 2012 Author Share Posted July 3, 2012 2 wheel drive. Quote Link to comment Share on other sites More sharing options...
Alex Bruene Posted July 4, 2012 Share Posted July 4, 2012 We've charged many a tow company for Torq-Shift overhauls. We always make note when one gets towed in without axle or driveshaft removal AND call the towing company before we even move the vehicle to inform them that it was towed the way it was. Most companies seem to try and make the drivers pay for the damage. Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted July 4, 2012 Share Posted July 4, 2012 2 wheel drive. If it has MSOF 4WD, the t-case can be placed in neutral and the oil pump inside will lube the t-case (the trans itself should remain in park - and the tow operator needs to remember that the t-case is in neutral BEFORE he finds himself chasing the truck down a hill). For anything else.... Quote Link to comment Share on other sites More sharing options...
cbriggs Posted September 29, 2012 Share Posted September 29, 2012 I've seen an old e4od truck catch on fire after being towed with the rear wheels on the ground. Driver thought he put the t case in neutral, but actally was in low. Spun trans internals pretty fast I think. Quote Link to comment Share on other sites More sharing options...
Brad Clayton Posted September 29, 2012 Share Posted September 29, 2012 That would have been a youtube moment for sure. Quote Link to comment Share on other sites More sharing options...
Jim Warman Posted September 30, 2012 Share Posted September 30, 2012 Just for the record.. notice that the new Explorer is not a flat tow vehicle any longer. Quote Link to comment Share on other sites More sharing options...
cbriggs Posted September 30, 2012 Share Posted September 30, 2012 It would have, but I dont think youtube existed then... And we were a little more concerned with putting the fire out, as the tow truck pulled right up to the shop. Quote Link to comment Share on other sites More sharing options...
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