Clunking when hubs locked in.

[bigo1966]

Ive posted this before but another quesion just came up. Is the clunking from the u-joint possibly from reaching the u-joints limit and not necessarily a bad u-joint? Just like when a driveshaft is at too sharp of an angle. I have the front end appart and i was going to replace the u-joints tonight. They appear tight no matter what i do to try to see if they are bad. I might just replace them anyways since im in that far. anything special i need to do when sliding the axles out from the diff? are there any pins?

[moore20017.3]

If the stock wheel joints are tight DO NOT REPLACE THEM. You are always better off with the Spicer joints in there...... mine have 250,00 on them and show no sign of wear. If you do change one, use a press to push them in NOT A HAMMER.

[bigo1966]

Yeah i cant find any play in them at all. On chevys when they were worn you could easily tell, 1/16" of play or so and im seeing NOTHING on either side. Thats what got me thinking that when turning they might be just at there limit and with the weight of the truck might just be enough to get them to clunk.

[bigo1966]

Well ****, the u-joints looked good. I replaced one for now and managed to break my vice so ill have the other swaped tomorrow. Im pretty sure the klunking was not from the u-joints. nothing like some 300 dollar troubleshooting.

[TURBODIESELWAGON]

On my 250 gasser , when hubs are locked , and in 2 wheel, making turns I would here a clang here and there, with that axle engaged.

Plows its nuts off quietly when in 4HI

[bigo1966]

Was it a clank or thud/donk? Whatever a donk is, but it makes sence to me. Was it also when you would lock it left or right?