4.88's too much for my transfer case?

LongrangeLauber · October 18, 2013

Yeah sounds more like they're just inexperienced and set your gears wrong.

The rear is smooth as glass. I called around before and sounded like no one likes setting up the ifs differential

Prokopchuk_9 · October 18, 2013

Smooth at slow rpms, like I said sounds like it's shimmed wrong or they screwed a bearing or something. Smooth doesn't mean it was installed correctly at all...

LongrangeLauber · October 18, 2013

Its the front I'm having trouble with though. I was just saying I think they set the rear up good not so much the front. No weird noises or whines or anything from the rear.

Ifs is a completely different ball game I guess because you can't see everything your doing. But it should make it easier since there are adjusters and the only shim that I'm aware of in the front is the pinion shim

LongrangeLauber · October 21, 2013

Well I went to the shop again Friday and seems like they are tired of me coming back in haha, and he told me to bring the old tcase I had in the truck originally and he'll take it apart and look at it, see if bearings are bad or chain stretched or anything to make that terrible noise, and then he will find out that there is nothing wrong with it.

Could the driveshaft just be a tad short and causing this noise? Never had problems on the RCX lift, but maybe because this kit drops the diff. about 3" more than that kit. If everything is OK with the old tcase, then Im pretty sure the replacement one is perfectly fine. At that point, Im just going to take it to the dealers to get a second opinion.

Im just chasing driveline gremlins now, and its costing me $$$

blackout07 · October 21, 2013

I wouldst think the new lift would be the issue. If anything the driveline should be closer to stock with the greater drop.

LongrangeLauber · October 21, 2013

Angle on the front driveshaft at the pinion is flat, the transfer case end is a little steeper than before, because of the bigger drop. I may get a double cardan shaft but that's just for the angle. There's no way either of my t cases are bad. I guess I just have to take it to the dealer and drop the $. And then show the shop that setup the gears what the dealer says. They are pretty honest with me, so I trust what the dealer will say

Prokopchuk_9 · October 21, 2013

That's exactly what I told you to look out for a couple posts ago in this thread bud....read...

I have the exact same issue.

Prokopchuk_9 · October 21, 2013

Run a 1350CV on the tcase side of the shaft and figure out how much it has to be lengthened.

Prokopchuk_9 · October 21, 2013

Call these guys, this is the shaft I have sitting at home. Just gotta swap it out next time the truck is in Ontario. These guys make shafts specifically for lifted trucks. They know all about it.

http://www.ccidriveline.com/chevrolet/lifted-truck-1.html

blackout07 · October 21, 2013

Well you may have a bit more angle but that's not your problem. Plenty of guys run close to 10" of suspension without modification to the drive shafts. It's your gears or gear setup. The shop knows this...I guarantee it.

LongrangeLauber · October 21, 2013

I guess if its the gear set I'll be paying for labor again. Damn...

blackout07 · October 21, 2013

I guess if its the gear set I'll be paying for labor again. Damn...

BS. Should have a 6 month warranty. Mine did. The offroad shop that did mine didn't have another set in stock so they outsourced to a local diff shop. They told me the set up was fine but the gears weren't machined quite right. It didn't cost me a dime and shouldn't cost you anything either.