4.10'S IN!
03-13-2010, 02:17 PM
#11
4th Gear Member
Thread Starter
Join Date: Mar 2006
Location: New Jersey
Posts: 1,609
Bad news.
Whiners are not whinners...
There are problems with them there 4.10s.
Your buddy is not really a buddy, is he.
If so he would have passed on your gear install.
What tools were used for this install?
What was the preload on the pinion crush sleeve?
Sounds like your pinion is too far from the ring....
Are they FRPP gears or Motives labled as FRPP?
Was there a big M stamped into the ring gear?
M =s Motive.
Its been known to happen.
FRPP is not FRPP when it comes to gears....
Whiners are not whinners...
There are problems with them there 4.10s.
Your buddy is not really a buddy, is he.
If so he would have passed on your gear install.
What tools were used for this install?
What was the preload on the pinion crush sleeve?
Sounds like your pinion is too far from the ring....
Are they FRPP gears or Motives labled as FRPP?
Was there a big M stamped into the ring gear?
M =s Motive.
Its been known to happen.
FRPP is not FRPP when it comes to gears....
Also, for anyone wanting to know. I had the car on the AC expressway and the car rev's @2750 around 80mph and I was getting a reading of 21MPG @ 75MPH.
03-20-2010, 11:04 AM
#13
Cut & Paste Expert
Join Date: May 2007
Location: NW Arkansas
Posts: 13,322
I really don't know the name of the tools (hence, I'm no mec) but they use both tools w/ their hands and "air" power type of tools I guess you call them. The gears are def FRPP, they came in a white box that says Ford Racing w/ a pic of a red 5.0. I don't remember seeing a big M on the gear, however, I wasn't looking. My buddys also did a EATON posi to. I have some pics of the install, I'll post them.
Also, for anyone wanting to know. I had the car on the AC expressway and the car rev's @2750 around 80mph and I was getting a reading of 21MPG @ 75MPH.
Also, for anyone wanting to know. I had the car on the AC expressway and the car rev's @2750 around 80mph and I was getting a reading of 21MPG @ 75MPH.
Any $100 dial indicators and magnet stands
used to check backlash specs and such?
If you were not looking for it, you would not casually see the 'M'.
Box types and labeling dont mean a thing....
03-21-2010, 02:41 PM
#15
Join Date: Mar 2009
Location: NY
Posts: 13
Im looking to get a set of 4.10's too. I have about 11k on my 07 gt. I drive hard every chance that i have. Would you recommmend i get the master rebuild kit with it? How far is the break in period and can I just jump on the highway to rack up the miles?
03-21-2010, 02:57 PM
#16
5th Gear Member
Join Date: Oct 2009
Location: Maui
Posts: 4,752
I bought my gears from brenspeed and got the master install kit too. I didnt want my installer to be without anything. I had 17k on my car when installed. Yes get the kit. There is no break in period as long as the install is done correctly. But I did do several heat cycle trips before hammering it.
This mod really wakes up the car IMO. For everyday driving it just feels so much faster.
patrick
http://www.brenspeed.com/r8-8rmk.html
03-22-2010, 12:13 PM
#18
2nd Gear Member
Join Date: Jun 2007
Location: Windermere/Orlando, FL
Posts: 357
03-22-2010, 03:14 PM
#19
4th Gear Member
Thread Starter
Join Date: Mar 2006
Location: New Jersey
Posts: 1,609
There going take off the cover and put some new and thicker gear oil (we change the gear oil also when they did the gears)
There also seem to be a "pitch" coming some where from the car also, and I don't mean the whine. Its not very loud, but It'll give you a headache.
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