I just finished putting on the 4" rough country lift. I lowered the tranfer case like they said and now my exhaust and front drive shaft have about the space of 2 or 3cd's tall between them. Is this normal? Will it ever hit when flexing? Thanks Mike
CK5
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Front Driveshaft and exhaust clearance?
- Thread starter stockk5
- Start date
That is a chevy y-pipe and a lift for you. They can rub, mine did with a 6" lift. This would be a good time to go to a custom exhaust system. 
I'm having the same problem just mine is rubbing. Called a guy at a local muffler shop and he said that it should be cheap to cut and lower the pipe. Let me know what you do as I have to fix mine soon.
it probly will. i've got 3" lift and it rubs under full flex. you can either have a muffler shop make you a new pipe, have them put a dent in it, or buy some thorley headers that come with new pipe that dips down for lifted trucks.
or just let the shaft rub on it when your flexin.
or just let the shaft rub on it when your flexin.
argh...hm i know a friend who welds for a living.. and bends tubing all the time. ill prob run it for now then have him make a custom bend there.
A lot of guys that don't just remove the y-pipe reroute it over the top of the shaft.stockk5 said:
i remember considering over the top, but i think it looks pretty tight with only 3" of lift.not much room for compression. i'd say your 4" will probly look similar. maybe on a 6-8" lift it would make more sense. what i have seen that looked cool was routing it straight back past the Tcase and over the rear shaft. didnt look like i'd have enough room in my truck for that route but it is something to think about
pauly383
Daddy383
Mine rubs flexing , I had it tucked up for clearance when stock exhaust replaced , never realizing a couple years later it would rub lifted . I actually rub on my crossmember worse than my exhaust 
THe mechanic that looked at mine recommends routing it above the shaft. Will this cause trouble for the tranny? Seems like a lot of heat close to the tranny pan. Not a bother at highway speed (maybe) but will get hot on the rocks. Anyone done this/had any problems?
4xcrazy
3/4 ton status
Raise your t-case back up, 4" lift, no need for lowering it.
k5floyd
1/2 ton status
bad vibrations is a reason
BURBicon
Registered Member
if you're gonna rub your y-pipe, do it in private...
cut of the y-pipe, put a cap on it, and add a complete exhaust system to the other side. My truck had dual exhaust when i got it, but that's probably what i would have done in your situation.
cut of the y-pipe, put a cap on it, and add a complete exhaust system to the other side. My truck had dual exhaust when i got it, but that's probably what i would have done in your situation.
Duals running off of the stock manifold or with headers?BURBicon said:
BURBicon
Registered Member
$?
well that depends on how much money ya' got.
well that depends on how much money ya' got.
4xcrazy said:
i had to lower mine with only 2 1/2" lift. the vibes werent horrible but it definatly wasnt vibe free.
the shorty driveshafts on blazers are lame. i want to do a SYE and CV joint shaft.
if you dont smog your truck, go ahead and run duals. if your truck needs to be smogged, it wont even make it onto the machine before they fail it.
4xcrazy
3/4 ton status
Jonny-K5 said:
Yeah,my bad, i have a burb, has longer driveshafts, didn't need to do anything with the T-Case.
Did you have front driveshaft/y pipe issues with your 4" lift.
blackblazer717
1/2 ton status
4xcrazy said:
ya right 4 inch lift will cause bad vibes from short wheel base man. mine did and i had to lower the t-case and shim the axles so it wouldnt vibrate like hell
4xcrazy
3/4 ton status
Mine have no issue with clearance, the pipe is really close, and has rubbed alittle, but nothing to extreme to cause any concern with, BTW it is still the stock pipe. I even run with sway bar disco's for that extra travel, still no problems. As far as vibrations, i don't have any problems, but this is probably due to the longer driveshaft of the Burb, the angles are not as harsh as the shorter Blazers.cbbr said:
84_Chevy_K10
Banned
lowering the transfer case is a bad idea in my opinion.
