Transmission noise

[Stiffer_22]

I have a 1983 Toyota Pickup 4x4, 4 speed. My transmission started to make noise when I was going up a hill, I shifted out of 3rd and into fourth and then the problem arose. I've read a bunch of forums and talked with a few of my Toyota friends and they all said it was my throw out bearing. So I took out the transmission and TC, and when I looked at the clutch and throw out bearing they were fine, but still went ahead and replaced them. Problem was, the noise is still there. It sounds like sand in a skateboard bearing. It makes noise through 1st, 2nd, 3rd, and reverse. No harsh noise like I described before in 4th gear though? I read that 4th is a 1:1 so there isn't a big load on the drive train when driving. So after more reading I feel that the main bearing or something like that is bad inside my transmission. Any help would be awesome.

[emsvitil]

Remove the shift boot(s) so you can see the tranny.

Go for a drive and listen..............

[helipilot77]

Might be input bearing or countershaft bearing.

[redneckcustoms13]

That should be a L48 trans. If so, junk it and swap a w56 in place. You'll need driveshafts from the truck the w56 comes from but it is a great upgrade. The L48 was a junk trans. I've been through 5 or 6 in my rig.

[helipilot77]

That should be a L48 trans. If so, junk it and swap a w56 in place. You'll need driveshafts from the truck the w56 comes from but it is a great upgrade. The L48 was a junk trans. I've been through 5 or 6 in my rig.

Agreed. That is what originally came in Ol' Blue (LittleSteve's truck) getting rid of it was a welcome upgrade although it still only has a G-52. But plans are in the works for yet another upgrade.
If switching to a W series trans you will also need to address the cross member since the trans mount will move back about 5 inches.