Rear differential service?
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So the GM crowd doesn't have a ridiculous 15k change interval like the Dodge crowd?
We (Dodge guys) were discussing this the other day, and were curious as to the change interval for the GM folks since both use the AAM 11.50 rear axle. Dodge specifies 75w90 and 15k change intervals (front and rear if 4wd).
Seems funny that the same axle, under two different models, would specify completely different maintenance.
We (Dodge guys) were discussing this the other day, and were curious as to the change interval for the GM folks since both use the AAM 11.50 rear axle. Dodge specifies 75w90 and 15k change intervals (front and rear if 4wd).
Seems funny that the same axle, under two different models, would specify completely different maintenance.
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Thanks for that info 2500.
Don't get me wrong, I have approaching 200k on my truck, and the fluid has only been drain two times (50k mobile 1, 75k royal purple). I disregarded the recommended 15k change interval because I thought it was excessive. My logic was the simple fact there is no significant differences between this differential and one built 25 years ago...they use similar gears, bearings, races, and seals. I'm not arguing the fact they won't go that many miles, only trying to determine WHY Dodge would specify a 15k change interval.
I would like to see if the GM Owner's manual has a change interval? Dodge has a standalone booklet for maintanence intervals.
Don't get me wrong, I have approaching 200k on my truck, and the fluid has only been drain two times (50k mobile 1, 75k royal purple). I disregarded the recommended 15k change interval because I thought it was excessive. My logic was the simple fact there is no significant differences between this differential and one built 25 years ago...they use similar gears, bearings, races, and seals. I'm not arguing the fact they won't go that many miles, only trying to determine WHY Dodge would specify a 15k change interval.
I would like to see if the GM Owner's manual has a change interval? Dodge has a standalone booklet for maintanence intervals.
#9
75W140 is recommended for towing IIRC
On DP there its recommended 100K change interval posted by a tech several years ago I'm not sure if that was GM or just a general recommendation made by him. Rttoy has plenty of Dmaxs in his fleet so I would trust him. 200K on that nasty break in oil....wow
On DP there its recommended 100K change interval posted by a tech several years ago I'm not sure if that was GM or just a general recommendation made by him. Rttoy has plenty of Dmaxs in his fleet so I would trust him. 200K on that nasty break in oil....wow
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