Ford-Rangers.com Ranger Forum HomeFord-Rangers.com Ranger Forum Home
Home Recent Topics Search search Menu menu Not logged in - Login | Register
Ford-Rangers.com Ranger Forum > Tech Section > Drivetrain Tech > 8.8 Rear Axle Rebuild

Ford-rangers.com is a discussion forum, a Ranger forum for people who have questions about fixing or modifying
their Ford Rangers or people who just admire their Ranger. Please join and enjoy sharing experiences!

No Ads When Registered :)

8.8 Rear Axle Rebuild
 Moderated by: MaDMaXX, Mike69, NoPower Page:  First Page Previous Page  1  2  3  4  Next Page Last Page  
New Topic Reply
 Rate Topic 
 Posted: Wed Sep 5th, 2018 12:37 am
PM Quote Reply
26th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 No upgrades, per se,  unless you count the Trac-Lok as an upgrade (which I do, since it came factory with open diff).
Back To Top PM Quote Reply

 Posted: Wed Sep 5th, 2018 12:38 am
PM Quote Reply
27th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Fired it up over the weekend to hear it run.  Love that truck.  Can't wait to get it back on the road, but when I do a job I do it right so I'm not taking any shortcuts.  All new brakes, ujoints, shocks, painting any of the parts that went through electrolysis.
Back To Top PM Quote Reply

 Posted: Thu Sep 6th, 2018 04:51 am
PM Quote Reply
28th Post
Eddie Money
Member


Joined: Mon Nov 13th, 2017
Location: Pacific North West
Posts: 689
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 1089
Member's Gallery
 Cant wait to see it all done sounds like its gonna be nice!!



____________________





2007 Sport 4door 4x4 4.0L SOHC V6 Ranger
Back To Top PM Quote Reply

 Posted: Fri Nov 23rd, 2018 11:28 pm
PM Quote Reply
29th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Back at it everyone....pics to come tomorrow. Starting to set up the ring & pinion.
Back To Top PM Quote Reply

 Posted: Fri Nov 23rd, 2018 11:34 pm
PM Quote Reply
30th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 First time I've rebuilt one of these, so there a lot of things that are taking me a lot of trial and error....
Back To Top PM Quote Reply

 Posted: Fri Nov 23rd, 2018 11:53 pm
PM Quote Reply
31st Post
JAMMAN

Wants A Torsen


Joined: Mon Sep 18th, 2017
Location: Grove City Ohio, USA
Posts: 3916
Name: Jim
Occupation: CNC Programmer
Interests: RBV's, Computers
Status: 
Offline
Reputation: 
Reputation Points: 5950
Member's Gallery
 Whatever you do stay away from the hammer :)



____________________
00 XLT 4WD XCSB 4.0 G2
00 XLT 2WD RCSB 5.0 swap Gherkin
00 XLT 4WD RCSB 3.GO! Jalapeño
Modern technology has us all connected like the Borg on Star Trek. The Smart phone is a device used to keep us plugged into the coveted collective.
Back To Top PM Quote Reply

 Posted: Fri Nov 23rd, 2018 11:55 pm
PM Quote Reply
32nd Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Very good advice.

Went with a small 4oz deadblow instead 😉
Back To Top PM Quote Reply

 Posted: Sat Nov 24th, 2018 05:03 pm
PM Quote Reply
33rd Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 All the external work is complete.  Chased threads in axle housing (cover bolts), installed races for pinion bearings, installed axle bearings and seals, pressed on diff carrier bearings.

Attachment: IMG_20181124_124512156.jpg (Downloaded 56 times)

Last edited on Sat Nov 24th, 2018 05:06 pm by jsoluna
Back To Top PM Quote Reply

 Posted: Sat Nov 24th, 2018 05:07 pm
PM Quote Reply
34th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Races installed.

Attachment: IMG_20181124_124519953.jpg (Downloaded 52 times)
Back To Top PM Quote Reply

 Posted: Sat Nov 24th, 2018 05:09 pm
PM Quote Reply
35th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Made a pinion flange holding tool from some scrap.

Attachment: IMG_20181124_124556539~2.jpg (Downloaded 53 times)
Back To Top PM Quote Reply

 Posted: Sat Nov 24th, 2018 08:09 pm
PM Quote Reply
36th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Got my first gear pattern witness.

Great heel to toe contact. Set backlash dead on to .008".  Looks like the pattern is sitting high on the tooth though.  Bring pinion further towards ring gear?  What is a good estimate for a starting shim to get the pattern to shift closer to the root?

Attachment: IMG_20181124_153214271.jpg (Downloaded 53 times)

Last edited on Sat Nov 24th, 2018 08:12 pm by jsoluna
Back To Top PM Quote Reply

 Posted: Sat Nov 24th, 2018 08:10 pm
PM Quote Reply
37th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 And coast side:

Attachment: IMG_20181124_153228167.jpg (Downloaded 53 times)
Back To Top PM Quote Reply

 Posted: Sat Nov 24th, 2018 08:33 pm
PM Quote Reply
38th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 After looking over tons of images on the internet, it appears that the pattern I have is a lot more pronounced, possibly indicating that the pinion is too close to the ring gear.  My original pattern that I took pics of before I removed the old ring and pinion looked almost identical though.

Attachment: 0_IMG_20181124_163243_639.jpg (Downloaded 53 times)
Back To Top PM Quote Reply

 Posted: Sat Nov 24th, 2018 08:35 pm
PM Quote Reply
39th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Coast side from original setup:

Attachment: 0_IMG_20181124_163316_951.jpg (Downloaded 52 times)
Back To Top PM Quote Reply

 Posted: Sat Nov 24th, 2018 09:56 pm
PM Quote Reply
40th Post
JAMMAN

Wants A Torsen


Joined: Mon Sep 18th, 2017
Location: Grove City Ohio, USA
Posts: 3916
Name: Jim
Occupation: CNC Programmer
Interests: RBV's, Computers
Status: 
Offline
Reputation: 
Reputation Points: 5950
Member's Gallery
 TO ME only setting up one in my life but being a machinist by trade I think your pinion was too far forward originally and looks great now.

If your lash is set to .008 that means there is room for lube. Are you sure about the .008 it looks like the ring and pinion are almost touching? If it is truly .008 (did you do that by adjusting shims to the right and left of the carrier?) I would leave it where it is.

Need dreaded sled or possibly V8 level2 in here for a second opinion. Maybe 410 has set a few.



____________________
00 XLT 4WD XCSB 4.0 G2
00 XLT 2WD RCSB 5.0 swap Gherkin
00 XLT 4WD RCSB 3.GO! Jalapeño
Modern technology has us all connected like the Borg on Star Trek. The Smart phone is a device used to keep us plugged into the coveted collective.
Back To Top PM Quote Reply

 Posted: Sat Nov 24th, 2018 10:04 pm
PM Quote Reply
41st Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Yep, it's dead nuts .008-.0085 checked in four locations.  My first drop in with factory cast shims had it at .011 so I tightened it up a bit (shifted .006 over to the ring gear side) which brought the pattern down ever so slightly from the face and brought backlash in the tight end of the spec. 

The contact pattern is just very pronounced, it shows contact over most of the heel->toe surface.  Most of the indications I have seen of proper contact note a patch of full contact that is smaller.  But again, I am new to this and don't have the intuition or the experience so I'm just using common sense.

Last edited on Sun Nov 25th, 2018 12:48 am by jsoluna
Back To Top PM Quote Reply

 Posted: Sun Nov 25th, 2018 01:08 am
PM Quote Reply
42nd Post
Bird76Mojo
Ranger aficionado


Joined: Mon Apr 23rd, 2018
Location: Toledo Illinois, USA
Posts: 96
Name: Gerald Ballinger
Occupation: Welder/Fabricator/Industrial Maintenance Technician
Interests: Fishing, trucks, doing stupid sh*t
Status: 
Offline
Reputation: 
Reputation Points: 206
Member's Gallery
 New ring and pinion set? Because if so, the brand may play a major part in those witness/contact marks being so elongated. I forget which brand it was, but many Mustang 8.8 owners were having problems with ring/pinions having a major howling noise after correctly setting up the gears. Most believed it was that manufacturer and the cut angles they were using, or worn production machinery.



GB :)
Back To Top PM Quote Reply

 Posted: Sun Nov 25th, 2018 01:11 am
PM Quote Reply
43rd Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 They are a Ford Racing 4.10 kit.  I would hope the Ford gears would set up nice 😐
Back To Top PM Quote Reply

 Posted: Sun Nov 25th, 2018 01:13 am
PM Quote Reply
44th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 My original gears which had a very similar drive and coast pattern, were very quiet (before the contamination of the fluid in the housing)
Back To Top PM Quote Reply

 Posted: Sun Nov 25th, 2018 01:04 pm
PM Quote Reply
45th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Moved pinion further towards ring gear.  Brought the pattern down slightly, made backlash a little tight so I opened it up.  

Current setup:
Pinion preload 25in/lbs
Pinion shims .040
Backlash .010

Shows more bias towards heel on drive and toe on coast now, but it is more centered root to face.

Attachment: IMG_20181125_083846558.jpg (Downloaded 47 times)
Back To Top PM Quote Reply

 Posted: Sun Nov 25th, 2018 01:05 pm
PM Quote Reply
46th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Coast side:

Attachment: IMG_20181125_083855553.jpg (Downloaded 47 times)
Back To Top PM Quote Reply

 Posted: Sun Nov 25th, 2018 04:09 pm
PM Quote Reply
47th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Drive side comparisons on the three different setups.  Keeping backlash in spec was not possible on setup three with the .010 shims that came in the kit.  I'm not tied to setup three anyway, just included it for reference on how the pattern is shifting.  My gut instinct is that setup two is the best of the three.





Last edited on Sun Nov 25th, 2018 04:12 pm by jsoluna
Back To Top PM Quote Reply

 Posted: Sat Dec 1st, 2018 04:04 pm
PM Quote Reply
48th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Any input on the patterns?
Back To Top PM Quote Reply

 Posted: Sat Dec 1st, 2018 06:58 pm
PM Quote Reply
49th Post
JAMMAN

Wants A Torsen


Joined: Mon Sep 18th, 2017
Location: Grove City Ohio, USA
Posts: 3916
Name: Jim
Occupation: CNC Programmer
Interests: RBV's, Computers
Status: 
Offline
Reputation: 
Reputation Points: 5950
Member's Gallery
 From opinion, setup 2 seems more logical.

BUT even though .004 extra might take it out of spec (as in #3) in one of the tests, you have no idea how close to "specs" the ring or pinion were milled/rolled/ground whatever method they used, and you have no idea how close the bore of the pinion shaft area is to your axle shaft bores as far as an intersection point.

The backlash I would place dead last in the importance of the collective criteria.
ALSO once they wear for a while the contact should actually get better (I've noticed this with gears in lathes and presses) but the backlash will suffer slightly.

I don't know how it equates to backlash but I have seen pinion slop where the driveshaft would move about 5 or 6 degrees before engaging fully without any noticeable clunk while driving and coasting.



____________________
00 XLT 4WD XCSB 4.0 G2
00 XLT 2WD RCSB 5.0 swap Gherkin
00 XLT 4WD RCSB 3.GO! Jalapeño
Modern technology has us all connected like the Borg on Star Trek. The Smart phone is a device used to keep us plugged into the coveted collective.
Back To Top PM Quote Reply

 Posted: Sat Dec 1st, 2018 11:01 pm
PM Quote Reply
50th Post
jsoluna
Member


Joined: Mon Aug 27th, 2018
Location:  
Posts: 53
Name: 
Occupation: 
Interests: 
Status: 
Offline
Reputation: 
Reputation Points: 128
Member's Gallery
 Thanks for the reply!

I can see the logic in your suggestions.  I would like to add also that one of the things I've been going for is to match the factory lapped pattern present on the ring and pinion gears.  My thinking is if you can keep it close to that same contact area in all dimensions and keep backlash as close to spec as possible, then it should provide some longevity.
Back To Top PM Quote Reply

Current time is 09:56 am Top Page:  First Page Previous Page  1  2  3  4  Next Page Last Page    

Ford-Rangers.com Ranger Forum > Tech Section > Drivetrain Tech > 8.8 Rear Axle Rebuild

Users viewing this topic



© 2007-2018 Jim -N- Chris
Page processed in 0.2892 seconds (18% database + 82% PHP). 131 queries executed.