Manual Transmission Lubrication
Pushrods4ever said:
Anyone know if the '05 with the 6 speed manual tranny can be towed on 4 wheels without a driveline disconnect? I plan to tow one behind my RV and I know the 4 speed automatic needs the disconnect but would like to know if the manual trans can be towed at freeway speeds, in neutral of course with the driveshaft turning.
Thanks
Please consider that the dispersion of oil in a typical manual transmission is accomplished by the cluster gear (physically below the input and output shafts and bathed in the oil) that is always turning any time the input shaft is rotating. Without a gear to pick up oil connected to the
output shaft, you will not have lubrication to the set of output bearings on the transmission.
My view of the repair manual for the T-56 leads me to believe that the reverse idler gear is driven by the output shaft, thereby picking up the oil for lubricating the output bearing. If this is true, you will have lube to the rear bearing assembly and not need to disconnect the drive shaft.
Please contact Transmission Technologies (Tremec) on their customer support line @ (800) 401-9866. One of the key technical questions should concern the reverse idler gear running on the output shaft. If they confirm this, you are home free in my book.
Best Regards,
Mike