This yr i had to get my manual trans rebuilt. Truck is a 88 d100 3.9 4 speed with OD. Back when i tokl it in 4th and R was gone,got it back in April with a 6 month warranty. Last week OD was hard going in/grinding and then would pop out as soon as went in. I stopped by the trans shop and he told me to bring it in. Second time it has gone back 1st time still making same sound(still is) he r and r the out put shaft bearing. Hopefully he will get it fixed this time and right