I am going to lose my mind over my transfer case noise.
At first I thought it was a clearance issue with the 4.70 gears.......wasn't that.
Then I thought it might have been cheap Trail Gear gears, which were my 4.70 gearset. Didn't mind that so much, as I thought that was a little too low for my unit. Tried out a Marlin Crawler 23 spline input gear for the stock t-case low range ratio........still makin the noise.
Marlin Crawler had suggested getting a rebuild kit, as that's all they would be able to do for me since nobody makes a whole new set of gears for one of these t-cases. I put all new bearings and seals in this thing over the weekend, and left the stock low range ratio with the Marlin Crawler input gear........still making the grinding noise during coasting.
There is no noise under load whether it be acceleration or deceleration, but there is an obnoxiously loud grinding noise during that moment of slack in the whole driveline from when you let off the throttle to when it goes under load from deceleration.
There is no difference in 4x4 either, in fact there is just a little more noise from the rest of the gears running.
Can't tell in low range, as it won't go fast enough. The noise doesn't really happen until around 70 km/hr.
I'm lost and I'm ready to give in and put the chain drive t-case back in.