ag9111 wrote:Haven't really had to have a good look at the centre bearing yet as i have no lift. Will happen in the new financial year, accountant said no more this year.
So the centre bearing is rubber mounted and pivots when driveshaft angles are changed. Easily understood. Get the differential angles as close to zero as possible to alleviate the shudder. Correct me if i am wrong but universals should run happily at that sort of angle (4 degrees). Are we all barking up the wrong tree. Is the rubber compound to soft in the centre bearing, hence the shudder due to runout. Surely mitsi could work this out.
We get courier trucks in at work all the time with massive tailshafts. Front shaft is horizontal and rear is often running near 10 to 15 degrees downangle. Will take more notice tomorrow. I know me last hilux with 6 inches of lift never had an issue. one piece shaft , no caster wedges. That angle was massive and i chewed out universals a couple of times. No shudder though.
hey there yes the universals are fine as they are no where near binding.
To reduce shudder i read somewhere that the front and rear sections of a tailshaft should be within 1 degree of each other.
When a manual triton is lifted it causes the tailshaft angles to be different, thats why some kits supply wedges. It's also why auto and petrol don't seem to have the problem as the tailshafts are a longer length then the diesel manuals.
When the tailshaft angles are out it cause a whipping action at the centre bearing at lower speeds until the tailshaft smooths out.
Also when lifting a manual triton it pulls the yoke out of the gearbox loading up the centre bearing sideways, that's why i have install a slip joint to reduce load on the centre bearing and why some kits have tailshaft spacers.
The easiest fix if i had to do it again would be install a one piece tailshaft with a carden joint near the gearbox which would solve all problems.
cheers
