grinding noise...

**tigersport14** · 10-10-2007, 08:50 AM

ok so the other day i was drivin, and my friend was next to me in his camaro. he noticed that when i dropped it in 2nd (we were going about 45) it made a grinding noise. its an a4 ... anyone know what it could be?

**0rion** · 10-10-2007, 10:19 AM

I'm moving this to the tranny forum where you'll get more/better responses.

**tigersport14** · 10-10-2007, 06:55 PM

ok thx. sorry about posting it in the wrong section. anyone know what the problem is?

**35thAnniZ28** · 10-10-2007, 09:38 PM

got headers?!?!might be rubbing against the frame...
only way of fixing that noise is by putting polyurethane bushings..or tranny mounts ..but never heard of that ..hhmm

**tigersport14** · 10-11-2007, 08:22 AM

its a stock 04 ls1 with 5k miles

**35thAnniZ28** · 10-11-2007, 05:22 PM

when it shifted during wot...did it grind? if so..the rear end might need a gm additive

**tigersport14** · 10-12-2007, 07:39 AM

ill have to check that out. thx for the help!

**35thAnniZ28** · 10-12-2007, 09:56 AM

i remember mine also did that when it was stock....just added the gm additive...probably a good 3-5 thousand miles laters....stopped hearing the grind noise when shift changes occured during wot

**shady milkman** · 10-12-2007, 09:59 AM

dont shift it into 2nd when driving...its a pain on the whole tranny ect. just keep it in 3rd when you want to race...when in third and you shift you have use of 3 clutch packs i believe compared to 1-2(dont quote me on the numbers) 1 & 2 are for towing and not recomended for constant driving unless you get your self a shift kit/built tranny

**shady milkman** · 10-12-2007, 10:00 AM

try the additive, if not i would think your gear might be screwed.

**35thAnniZ28** · 10-13-2007, 08:39 AM

hey shady i got a couple of questions....i changed the gear fluid while i was swapping bearings....i put lucas 60/90... whats the recommended weight i shouldve put...i noticed the stupid hum when accelerating...