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This depends on what Buick it is.
Most do not have oil in the rear "Axle" as most Buicks of this vintage did not have a rear Differential.
The ones that did need oil in the differential have a fill plug on the rear cover or the side of the case and this is where the oil is poured in.
Follow the instructions in the owners manual to get the correct level.
What else can I help you with?
Location of drain and fill plugs on a 2004 dodge 1500 pick up's rear axle?
The fill plug is on the rear cover of the differential. Remove the rear cover to drain the fluid.
How do you replace right rear axle seal on 1992 Buick roadmaster?
buick roadmaster 1992 rear axle does it have limited slip diff
Where is the rear axle filler plug on a 2004 Cadillac cts?
On the rear axle?
What is the rear shoulder room of the 2004 Buick Regal?
The 2004 Buick Regal has 57.1 in. of rear shoulder room.
What is the rear hip room of the 2004 Buick Regal?
The 2004 Buick Regal has 53.3 in. of rear hip room.
What is the rear leg room of the 2004 Buick Regal?
The 2004 Buick Regal has 36.9 in. of rear leg room.
What is the rear head room of the 2004 Buick Regal?
The 2004 Buick Regal has 37.4 in. of rear head room.
Where is the rear abs sensor on a 2004 dodge ram?
Top of the rear axleTop of the rear axle
What is the rear track of the 2004 Buick Regal?
The rear track of the 2004 Buick Regal is 5 ft. 1.3 in. (61.3 in.).
Where is the fill plug for rear end of a 97 Jeep Laredo?
It is in the center of the rear of the axle.
How do you change 2001 dodge 1500 4x2 rear differential fluid?
Remove rear axle cover, oil will drain out, reseal and install cover, fill fluid.Remove rear axle cover, oil will drain out, reseal and install cover, fill fluid.
What differential is in a 2004 dodge 2500?
Front axle is a 9.25 American Axle Rear axle is a 10.5 American Axle
