Parts Catalog Accessories Catalog How To Articles Tech Forums
Call Pelican Parts at 888-280-7799
Shopping Cart Cart | Project List | Order Status | Help



Go Back   PeachParts Mercedes-Benz Forum > Mercedes-Benz Tech Information and Support > Diesel Discussion

Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 02-10-2009, 08:24 PM
Actros617's Avatar
Ich fahre dieseltypen
 
Join Date: Apr 2008
Location: Oklahoma
Posts: 1,141
Rear diff swap question

What other things that is needed to be swapped when i swap the the 300SD diff with the 380SE diff (2.47)

__________________
Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi

Last edited by Actros617; 02-10-2009 at 08:29 PM.
Reply With Quote
  #2  
Old 02-10-2009, 08:28 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
You probably need to change the yoke..........the 2.47 might have the larger yoke. It takes a specific socket to to that.
Reply With Quote
  #3  
Old 02-10-2009, 08:33 PM
Actros617's Avatar
Ich fahre dieseltypen
 
Join Date: Apr 2008
Location: Oklahoma
Posts: 1,141
i might as well get that 380SE drive shaft... since i dont have the special tool...
__________________
Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi
Reply With Quote
  #4  
Old 02-10-2009, 08:42 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Good time to do the diff mount if it's been on there since the beginning of time...........

Good time to do both fuel supply and return hoses if they've been on there since the beginning of time.

Good time to do any exhaust work...........since you'll probably take it down to make your life easier.
Reply With Quote
  #5  
Old 02-10-2009, 08:54 PM
Actros617's Avatar
Ich fahre dieseltypen
 
Join Date: Apr 2008
Location: Oklahoma
Posts: 1,141
Diff mounts is a must, Fuel lines are fine, Exhaust will be straight pipe soon...

Will the 380SE driveshaft fit into the 300SD...
__________________
Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi
Reply With Quote
  #6  
Old 02-10-2009, 09:35 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by Actros617 View Post
Diff mounts is a must, Fuel lines are fine, Exhaust will be straight pipe soon...

Will the 380SE driveshaft fit into the 300SD...
If I had to make a guess..........I'd say that it will fit..........but, have never done it.
Reply With Quote
  #7  
Old 02-10-2009, 09:56 PM
sixto's Avatar
smoke gets in your eyes
 
Join Date: Jun 2000
Location: Eastern TN
Posts: 20,841
Speedo has to be replaced or recalibrated.

Sixto
87 300D
Reply With Quote
  #8  
Old 02-10-2009, 10:01 PM
Banned
 
Join Date: May 2002
Location: Blue Point, NY
Posts: 25,396
Quote:
Originally Posted by sixto View Post
Speedo has to be replaced or recalibrated.

Sixto
87 300D
...........or an electronic recalibration unit procured and installed.........for perfect speed.........with any size tires.
Reply With Quote
  #9  
Old 02-11-2009, 01:09 AM
Actros617's Avatar
Ich fahre dieseltypen
 
Join Date: Apr 2008
Location: Oklahoma
Posts: 1,141
if i have to get a speedo, it must be form any W126 V8 gasser, right???
__________________
Current Garage
2008 Mercedes GL320 CDI 188k mi Repair/Work in progress
1994 S350 160k mi Garage Queen & prepping for repairs
2005 E320 CDI 203k mi Healthy & Daily Driver
1994 S350 357k mi Retried as parts car
1984 300TD 214k mi Blown OM617 Poss OM603 Swap??

Sold
1987 300SDL 200K+
1994 S320 181K mi
2008 E320 Bluetec 127k mi
1999 S420 130K mi
1980 240D 360k mi
15+ Others that has come, stay and gone

GONE, BUT NOT FORGOTTEN
1995 E320 SE 220k mi
1984 300SD 350k mi
Reply With Quote
  #10  
Old 02-11-2009, 03:21 AM
ForcedInduction
Guest
 
Posts: n/a
Quote:
Originally Posted by Actros617 View Post
if i have to get a speedo, it must be form any W126 V8 gasser, right???
As long as it had the same diff ratio.
Reply With Quote
  #11  
Old 02-11-2009, 08:05 AM
pawoSD's Avatar
Dieselsüchtiger
 
Join Date: Oct 2004
Location: Grand Rapids, MI
Posts: 15,438
My dad and I might do this to his SD this summer. (his rear axles and diff are on their way to doom)
__________________
-diesel is not just a fuel, its a way of life-
'15 GLK250 Bluetec 118k - mine - (OC-123,800)
'17 Metris(VITO!) - 37k - wifes (OC-41k)
'09 Sprinter 3500 Winnebago View - 62k (OC - 67k)
'13 ML350 Bluetec - 95k - dad's (OC-98k)
'01 SL500 - 103k(km) - dad's (OC-110,000km)
'16 E400 4matic Sedan - 148k - Brothers (OC-155k)
Reply With Quote
  #12  
Old 02-11-2009, 08:13 AM
lutzTD's Avatar
Registered User
 
Join Date: Oct 2006
Location: Lutz, Florida (N of Tampa)
Posts: 2,461
does someone have a link to the correct method for replacing the yoke? I meaured the torque to remove the nut and re-applied the new yoke with the nut at the same torque. So far it is fine but I would like to be sure it is correct, it was a very low torque which I think means there is a lot of room for error
__________________

1982 300CD Turbo (Otis, "ups & downs") parts for sale
2003 TJ with Hemi (to go anywhere, quickly) sold
2001 Excursion Powerstroke (to go dependably)
1970 Mustang 428SCJ (to go fast)
1962 Corvette LS1 (to go in style)
2001 Schwinn Grape Krate 10spd (if all else fails)
Reply With Quote
  #13  
Old 02-11-2009, 09:48 AM
DeliveryValve's Avatar
Chairman of my Benz
 
Join Date: Jun 2006
Location: Central California
Posts: 4,159
^^^ Actually what needs to be done is measure the rotation of the pinion/flange as originally install in the differential casing with an inch pound torque wrench. Take note of it first, then remove the old flange. Install the new flange and tighten down the new nut until you get to that original rotational inch pound torque. Tightening down the nut to the original torque of that nut is not the correct way of doing it.

Here is a video of a guy setting the pinion bearing on a Ford rear end. About 2 minutes is where he describes setting the pinion to the prescribed inch pound torque.

http://www.youtube.com/watch?v=8APYO2sZyJU&feature=related
__________________
1983 123.133 California
- GreaseCar Veg System


Reply With Quote
  #14  
Old 02-11-2009, 10:05 AM
lutzTD's Avatar
Registered User
 
Join Date: Oct 2006
Location: Lutz, Florida (N of Tampa)
Posts: 2,461
Quote:
Originally Posted by DeliveryValve View Post
^^^ Actually what needs to be done is measure the rotation of the pinion/flange as originally install in the differential casing with an inch pound torque wrench. Take note of it first, then remove the old flange. Install the new flange and tighten down the new nut until you get to that original rotational inch pound torque. Tightening down the nut to the original torque of that nut is not the correct way of doing it.

Here is a video of a guy setting the pinion bearing on a Ford rear end. About 2 minutes is where he describes setting the pinion to the prescribed inch pound torque.

http://www.youtube.com/watch?v=8APYO2sZyJU&feature=related
FWIW the nut on the MB flange is very loose, nothing like what was shown in the video, it has a lock washer that gets bent over the edges to keep it from moving. I tightened it just barely tighter than hand tight on mine because it was that loose when I removed it, but I did miss the step of measuring the turning torque before disassembling it. It has quite a few miles on it so I guess for me it was close enough, thanx for the info.
__________________

1982 300CD Turbo (Otis, "ups & downs") parts for sale
2003 TJ with Hemi (to go anywhere, quickly) sold
2001 Excursion Powerstroke (to go dependably)
1970 Mustang 428SCJ (to go fast)
1962 Corvette LS1 (to go in style)
2001 Schwinn Grape Krate 10spd (if all else fails)
Reply With Quote
  #15  
Old 02-11-2009, 10:46 AM
DeliveryValve's Avatar
Chairman of my Benz
 
Join Date: Jun 2006
Location: Central California
Posts: 4,159
Yes there is a crush sleeve that he was setting on that Ford diff. Which is why recommended forwarding to 2 minutes into the video to the actual adjustment. You are probably close and should be fine. I wish somebody has an exact spec to this, instead using this method of checking first and guessing if the setting is original. I couldn't find the spec anywhere.

__________________
1983 123.133 California
- GreaseCar Veg System



Last edited by DeliveryValve; 02-11-2009 at 11:28 AM.
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On




All times are GMT -4. The time now is 03:08 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0
Copyright 2024 Pelican Parts, LLC - Posts may be archived for display on the Peach Parts or Pelican Parts Website -    DMCA Registered Agent Contact Page