Rebuilding rear diff on 1999 Dodge Ram 1500 4x4 5.9

Asked by Feb 24, 2014 at 10:53 AM about the 1999 Dodge Ram 1500 4 Dr Laramie SLT 4WD Extended Cab SB

Question type: Maintenance & Repair

I rebuilt the rear differential on my 1999 Dodge Ram 1500 4x4 5.9L, added posi, upgraded to 4.56 gears, and installed with a master rebuild kit. I have everything installed, I did not shim the carrier because I was able to use the adjusting sleeves on each side of the carrier to make everything tight enough. Once I install the brackets that go on each side of the carrier around the bearing races and tighten the bolts all the way down (100 ft lbs as per my chiltons manual), I cannot turn the differential at all. If I loosen the bolts a little bit then I can turn it just fine. I've watched multiple youtube videos and read a couple books on how to rebuild the differential because this is my first time doing this and they all said/showed you being able to move the differential with everything fully installed. Am I missing something here or is that how it's supposed to be?

7 Answers

10,585

Is it binding on the bearings or on the pinion. Check the backlash as you tighten.

I checked the backlash before installing the side brackets and it was perfect, once I tighten the bracket bolts all the way I cannot turn the differential at all.

10,585

You should be able to turn it by hand when complete. Check for backlash, turn the pinion. If the pinion still turns a bit there is an issue with the bearings or an allignment issue somewhere. If the pinon doesn't move at all verify your pinion depth and maybe move the carrier over and retry the torque procedure. There were no issues with the original part? The diff was good before the swap?

I bought all new parts. I can't move the pinion, diff, or tires at all if I have the bracket bolts tightened all the way

10,585

The gears are binding. The carrier must be moving as you torque it, negating your backlash. Try adjusting the sleeves to give you more clearance.

So loosen both sleeves or loosen the driver side sleeve and tighten the passenger side to make the carrier move over towards the driver side to give more clearance for the ring and pinion?

10,585

Keep it square. Yes the later. Just make sure you inspect all the parts if you get it to turn and make sure it's good. I'd apply the paste to the crown and verify the gear mesh too. Hate to damage your new parts.

Your Answer

Ram 1500

Looking for a Used Ram 1500 in your area?

CarGurus has 10,682 nationwide Ram 1500 listings starting at $1,500.

ZIP:

Dodge Ram 1500 Experts

  • #1
    Dan Connell
    Reputation
    6,390
  • #2
    pudgybear
    Reputation
    6,170
  • #3
    dandyoun
    Reputation
    5,570
View All

Related Models For Sale

Used Ford F-150
2,192 Great Deals out of 182,393 listings starting at $1,000
Used Chevrolet Silverado 1500
2,089 Great Deals out of 181,983 listings starting at $1,898
Used Dodge Ram 2500
145 Great Deals out of 5,081 listings starting at $2,999
Used GMC Sierra 1500
763 Great Deals out of 67,982 listings starting at $1,350
Used Toyota Tundra
418 Great Deals out of 33,614 listings starting at $1,999
Used Toyota Tacoma
554 Great Deals out of 41,951 listings starting at $2,000
Used Ford F-250 Super Duty
346 Great Deals out of 43,546 listings starting at $1,250
Used Dodge Dakota
119 Great Deals out of 3,677 listings starting at $1,650
Used Dodge Ram 3500
93 Great Deals out of 2,175 listings starting at $4,993
Used Jeep Wrangler
282 Great Deals out of 15,750 listings starting at $2,997

Used Cars For Sale

2010 Dodge Ram 1500 For Sale
67 Great Deals out of 1,373 listings starting at $6,799
2009 Dodge Ram 1500 For Sale
36 Great Deals out of 997 listings starting at $3,700
2008 Dodge Ram 1500 For Sale
62 Great Deals out of 1,504 listings starting at $3,000
2007 Dodge Ram 1500 For Sale
66 Great Deals out of 1,360 listings starting at $3,650
2006 Dodge Ram 1500 For Sale
67 Great Deals out of 1,292 listings starting at $2,500

Content submitted by Users is not endorsed by CarGurus, does not express the opinions of CarGurus, and should not be considered reviewed, screened, or approved by CarGurus. Please refer to CarGurus Terms of Use.