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  #1  
Old 08-05-2008, 03:38 PM
Zack
 
Join Date: Nov 2007
Location: Knoxville, TN
Posts: 337
300D Axle Replacement Problem??

I am replaceing a bad axle and everything went well taking the old one off. I simply cannot seem to get the new one to fit. It seems like it is not only to long but that the veins will not line up with the wheel.

What am I doing wrong??
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1984 300D Turbo
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  #2  
Old 08-05-2008, 03:43 PM
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put the new ones agianst the old ones. If they are the same size try pushing the joints in and then fitting them in.
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  #3  
Old 08-05-2008, 04:00 PM
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Its always possible the replacement part is poor quality and won't fit but first compare it to the old one and see what you have.

Scott
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1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
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  #4  
Old 08-05-2008, 04:07 PM
Zack
 
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Location: Knoxville, TN
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yeah I got them to go in a bit but they need to go in further. Is there anything I am supposed to do to the wheel part of where the axle fits into??
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1984 300D Turbo
1980 300SD Sold
1983 300TD Sold
Dagger 16 ft. Legend Canoe (for the weekends)
Marin Northside Trail Mtn. Bike
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  #5  
Old 08-05-2008, 04:38 PM
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You'll need to raise and lower the differential as you insert the new axle to get it to line up properly throughout the process. They don't just go in with everything in one position. Have you been doing that?

Scott
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1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)
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  #6  
Old 08-05-2008, 06:20 PM
Zack
 
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Yes I have.
MY main problem is that I cannot get the outer joint of the axle to slide into the wheel. It seems as though the vein things just aren't going to mate up for some reason.
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1984 300D Turbo
1980 300SD Sold
1983 300TD Sold
Dagger 16 ft. Legend Canoe (for the weekends)
Marin Northside Trail Mtn. Bike
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  #7  
Old 08-05-2008, 07:07 PM
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Are you saying the splines on the new axle don't seem to match the splines on your wheel hub - or that you can't even get the new axle into proper position to even attempt to insert it?

If its a spline problem, this should be readily apparent by comparing the splines on the new axle to the old one. They are either the same size or they aren't.

If you can get it lined up but just can't get it in, try some anti-seize compound on the splines to help it slide it. Make sure the splines in your hub don't have any rust or anything else on them to hinder insertion.

If you are having trouble even getting the outer end into position, make sure the inner end is fully inserted into the differential. Go ahead and install your retaining ring in the differential just to make sure you are all the way in.

Hope that helps.

Scott
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1982 Mercedes 240D, 4 speed, 275,000
1988 Porsche 944 Turbo S (70,000)
1987 Porsche 911 Coupe 109,000 (sold)
1998 Mercedes E300 TurboDiesel 147,000 (sold)
1985 Mercedes 300D 227,000 (totaled by inattentive driver with no insurance!)
1997 Mercedes E300 Diesel 236,000 (sold)
1995 Ducati 900SS (sold)
1987 VW Jetta GLI 157,000 (sold)
1986 Camaro 125,000 (sold - P.O.S.)
1977 Corvette L82 125,000 (sold)
1965 Pontiac GTO 15,000 restored (sold)
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  #8  
Old 08-05-2008, 07:14 PM
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85 300D 4spd+tow+h4
 
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Did you use lube?
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  #9  
Old 08-05-2008, 07:56 PM
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To make sure the splines are correct, try inserting it a little bit from the outside. I had to move my drivers side down quite a bit. Disconnected the shocks and everything.
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  #10  
Old 08-06-2008, 02:43 AM
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Quote:
I simply cannot seem to get the new one to fit. It seems like it is not only to long but that the veins will not line up with the wheel.

What am I doing wrong??
Push the two CV joints together HARD (towards each other) - they will slide in and out about 1 inches but are quite stiff on a new axle, push the diff accross too to compress the opposite axle. Turn the hub a bit to align the spline.
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Last edited by Beagle; 08-06-2008 at 01:19 PM.
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  #11  
Old 08-25-2008, 03:04 PM
Zack
 
Join Date: Nov 2007
Location: Knoxville, TN
Posts: 337
Thus far I have ruined 2 axles by trying to bang them in. (thank goodness for the auto parts return policy)
Basically the hub will not receive the axle. I have gotten a file and I am filing the hub down so that the axle might fit.

Is there anything else I can do to get the axle to go in the hub other than change out the entire arm??

This is a nightmare situation.
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1984 300D Turbo
1980 300SD Sold
1983 300TD Sold
Dagger 16 ft. Legend Canoe (for the weekends)
Marin Northside Trail Mtn. Bike
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  #12  
Old 08-25-2008, 03:38 PM
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More Kryptonite axles

What brand of axles, where did they come from?

I have several post regarding axle replacement. Do a search and read about aftermarket replacements.
Hopefully, you still have your originals??? Send them to a rebuilder or simply replace the boots if the CV joints are still smooth, tight.

DO NOT mix up the differential end spacers!

Also, chances are any new or different axle will need a different spacer thickness.
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  #13  
Old 08-25-2008, 03:59 PM
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85 300D 4spd+tow+h4
 
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Are you sure you have the right kind of axles for the diff? IIRC there is about 4 different ones.
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  #14  
Old 08-25-2008, 04:16 PM
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Quote:
Originally Posted by ImBroke View Post
To make sure the splines are correct, try inserting it a little bit from the outside. I had to move my drivers side down quite a bit. Disconnected the shocks and everything.
Not possible.
The splines won't meet when inserted from the outside. Axle stub splines are roughly 1 1/4" long, the splines in the hub are recessed at least 2" from the outside.
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  #15  
Old 08-25-2008, 04:24 PM
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Quote:
Originally Posted by winmutt View Post
Are you sure you have the right kind of axles for the diff? IIRC there is about 4 different ones.


There are many different ones. This is why the spacer shim from the right side may be a different thickness from the left.

Machining tolerance varies such that the length of the inner stub to the clip groove is different. The correct spacer (shim) sets this to the specific differential.

If you swap axles, chances are you will need different shims.

Still, this does not help solve zsmith29's problem of the outer splines not meshing.
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