What causes gear noise, can it be fixed?
04-09-2006, 09:01 PM
#11
3rd Gear Member
Thread Starter
Join Date: Dec 2005
Location: Long Island, New York
Posts: 601
RE: What causes gear noise, can it be fixed?
ORIGINAL: hawgman
I have heard several ( actually many ) different people complain about the noise from Motive gears. Which sucks because like you, I was more intereseted in 3.90s than 4.10s. You could possibly talk to JDM about having them coated. That is supposed to make them quieter. But you are going to spend more on the coating than you did on the gears. Could also consider gonig to a 9" rear end and using Ford 3.90s
What the hey, it's only money. And I think all of us know by now that a crack habit would be cheaper than owning one of these cars!
Seriously though, you shouldn't be racing it until you get the gears broke in.
I have heard several ( actually many ) different people complain about the noise from Motive gears. Which sucks because like you, I was more intereseted in 3.90s than 4.10s. You could possibly talk to JDM about having them coated. That is supposed to make them quieter. But you are going to spend more on the coating than you did on the gears. Could also consider gonig to a 9" rear end and using Ford 3.90s
What the hey, it's only money. And I think all of us know by now that a crack habit would be cheaper than owning one of these cars!Seriously though, you shouldn't be racing it until you get the gears broke in.
How long does it take to break them in? What I did yesterday was just bring the car home after the gears were installed, about a 20 mile drive, then went out three times and drove the car for about 30-40 miles, then came back. Waited about more than an hour between each run, the last one was at around 11:30PM!
04-09-2006, 10:12 PM
#12
1st Gear Member
Join Date: Mar 2006
Location:
Posts: 53
RE: What causes gear noise, can it be fixed?
i have motive 3.73 they made noise when cornering, have not had any noticable noise at hwy speeds however rag tops have considerable road noise top up or down i put in BG gear additive they have been quiet since . there is a process called micronite polish that is inexpensive and also strengthens the steel dramatically reduceing parisitic drag thus free HP rear gears, valve trains, push rods etc. can be done.
04-09-2006, 10:43 PM
#13
3rd Gear Member
Join Date: Jul 2005
Location:
Posts: 737
RE: What causes gear noise, can it be fixed?
Ive never put in a ring/pinion, always worried about fitting up right...the whole thing of blueing up/setting side clearance/pinion depth just sounds like could be expensive...We had some big lathes at work with big hypoid gearsets(like $10k!), and Ive seen a couple sets ruined in short order by improper installations by guys that supposedly knew how...so I still would rather not mess with mine.
A buddy had a 84 camaro that needed gears at almost new, and the dealer ended up swapping 3 times before getting right...luckily it was all warranty, but sounds kinda touchy to me...are the new 8.8's easier to swap/fit than the older stuff?
A buddy had a 84 camaro that needed gears at almost new, and the dealer ended up swapping 3 times before getting right...luckily it was all warranty, but sounds kinda touchy to me...are the new 8.8's easier to swap/fit than the older stuff?
04-09-2006, 10:51 PM
#14
4th Gear Member
Join Date: Jan 2006
Location: Nashville Tn
Posts: 1,644
RE: What causes gear noise, can it be fixed?
ORIGINAL: ford4v429
Ive never put in a ring/pinion, always worried about fitting up right...the whole thing of blueing up/setting side clearance/pinion depth just sounds like could be expensive...We had some big lathes at work with big hypoid gearsets(like $10k!), and Ive seen a couple sets ruined in short order by improper installations by guys that supposedly knew how...so I still would rather not mess with mine.
A buddy had a 84 camaro that needed gears at almost new, and the dealer ended up swapping 3 times before getting right...luckily it was all warranty, but sounds kinda touchy to me...are the new 8.8's easier to swap/fit than the older stuff?
Ive never put in a ring/pinion, always worried about fitting up right...the whole thing of blueing up/setting side clearance/pinion depth just sounds like could be expensive...We had some big lathes at work with big hypoid gearsets(like $10k!), and Ive seen a couple sets ruined in short order by improper installations by guys that supposedly knew how...so I still would rather not mess with mine.
A buddy had a 84 camaro that needed gears at almost new, and the dealer ended up swapping 3 times before getting right...luckily it was all warranty, but sounds kinda touchy to me...are the new 8.8's easier to swap/fit than the older stuff?
04-09-2006, 11:12 PM
#15
2nd Gear Member
Join Date: Feb 2006
Location:
Posts: 227
RE: What causes gear noise, can it be fixed?
I was wondering about that. Ford doesnt break in the gears on a new car. Why do we need to break in the gears when we change them? Seems if they were done right, there shouldnt really need to be any breakin period
Thread
Thread Starter
Forum
Replies
Last Post
