Fluid Options for 4.10 gear install?
08-27-2008, 10:07 AM
#11
5th Gear Member
Join Date: Sep 2007
Location: Escondido, California
Posts: 2,018
Here is an interesting link. This shop recommends not using synthetic gear oil.
http://sdgearaxle.com/_wsn/page3.html
http://sdgearaxle.com/_wsn/page3.html
08-27-2008, 11:19 AM
#12
4th Gear Member
Join Date: May 2007
Location: Utah
Posts: 1,249
You will most likely need a new pinion bearing. Either the inner or outer pinion bearing is a bitch to remove without damaging it. My shop was able to reuse all the other bearings. The pinion bearing ran $25 from ford. You need 75w140 gear oil and I use royal purple myself. the royal purple has friction modifier in it, but I still had to buy a 4oz bottle from ford ($5).
Last edited by grampa_stang; 08-27-2008 at 11:24 AM.
08-27-2008, 01:05 PM
#13
3rd Gear Member
Join Date: Mar 2008
Location: Modesto, CA
Posts: 712
Here is an interesting link. This shop recommends not using synthetic gear oil.
http://sdgearaxle.com/_wsn/page3.html
http://sdgearaxle.com/_wsn/page3.html
08-27-2008, 02:10 PM
#14
6th Gear Member
Join Date: Sep 2006
Location: Gainesville, FL
Posts: 11,278
Here is an interesting link. This shop recommends not using synthetic gear oil.
http://sdgearaxle.com/_wsn/page3.html
http://sdgearaxle.com/_wsn/page3.html
08-27-2008, 05:31 PM
#16
Join Date: May 2008
Location:
Posts: 5
Yeah..what's up with that. Just had my gears installed Friday. I mentioned I wanted some friction modifier because I have the "slow turn moan". The installer also used Royal Purple and said it had friction modifier in it (the royal purple website confirms this) but I still have the moan. At least I have no whine though. Looks like I need the Ford friction modifier too.
My 4.10's only make sound while engine braking from 50-40mph. Is this the "moan"?
08-27-2008, 08:00 PM
#17
Thread Starter
Join Date: Jan 2008
Posts: 33
Well, I decided to have another shop do it. They are a chicagosvt.com forum sponsor, and I talked to the guy and he knew exactly what he was talking about. He knew exactly what type of fluid and additive, discussed the pinion bearing most likely needing to be replaced, and I asked a bunch of other questions to gauge the guy and he made me feel MUCH more confident about the install. He said they've done hundreds of ring/pinion installs, and the best part is they only want 250 for the install plus the fluid, and probably pinion bearing as well. Except I have to wait until sept. 12 :-(
One of the best parts is that since he does a bunch of these, he has all of the parts in stock so no worries about running to a dealership for parts.
Anyways, I'm very excited to have these in, and I feel much better.
The name of the shop is speed inc
Remove the space, add a .com and thats there website too. Check them out.
Scott
One of the best parts is that since he does a bunch of these, he has all of the parts in stock so no worries about running to a dealership for parts.
Anyways, I'm very excited to have these in, and I feel much better.
The name of the shop is speed inc
Remove the space, add a .com and thats there website too. Check them out.
Scott
Last edited by Marksman14; 08-27-2008 at 08:04 PM.
08-28-2008, 05:58 AM
#18
4th Gear Member
Join Date: May 2007
Location: Utah
Posts: 1,249
No. The rear end moan only happens when going about 5mph and turning sharply...like into a parking space. There's actually a TSB for it. I need to dig it up as I'm taking it to the dealer to have the friction modifier added..or clutch packs replaced, whichever is needed.
08-28-2008, 08:59 AM
#19
6th Gear Member
Join Date: Sep 2006
Location: Gainesville, FL
Posts: 11,278
No. The rear end moan only happens when going about 5mph and turning sharply...like into a parking space. There's actually a TSB for it. I need to dig it up as I'm taking it to the dealer to have the friction modifier added..or clutch packs replaced, whichever is needed.
08-28-2008, 10:44 AM
#20
4th Gear Member
Join Date: May 2007
Location: Utah
Posts: 1,249
I just had my 3.73's installed last Friday. I just spoke with the Ford service writer, he said since my build date is 2 monthse prior to 10/2006, I'll need the clutch packs. I did NOT mention anything about the new gears, but I did ask him if he had to take apart the ring/pinion. He said NO, they pull the entire 3rd member and just replace the packs.
Hope they don't notice anything and try to void my warranty.
Hope they don't notice anything and try to void my warranty.
Last edited by grampa_stang; 08-28-2008 at 02:10 PM.