Specifications
Corvette and Cadillac XLR. 
Recommendation/Instructions: 
If this is the first complaint for this condition 
flush and fill the rear axle with mineral based 
lubricant P/N 89021669 (in Canada 89021670) 
gear lube and 4 ounces of the friction modifier 
additive P/N 01052358 (in Canada 992694). 
If this is a repeat complaint or the condition 
persists after the flush and fill, replace the right and 
left rear axle clutch packs following published 
service procedures. 
After clutch pack replacement use 1.6 l (1.69 
qt) synthetic axle lubricant GM P/N 12378261 
(Canadian P/N 10953455). and 4 ounces of the 
friction modifier additive P/N 01052358 (in Canada 
992694). 
Note: 2006 Z06 equipped vehicles require 2.55 l 
(2.70 qt) synthetic axle lubricant GM P/N 12378261 
(Canadian P/N 10953455) and approximately 190 
ml (6.4 oz) limited-
slip differential lubricant additive 
GM P/N 1052358 (Canadian P/N 992694). 
Note 2: Export vehicles use 2.01 l (2.12 qt) 
synthetic axle lubricant GM P/N 12378261 
(Canadian P/N 10953455) and approximately 150 
ml (5.1 oz) limited-
slip differential lubricant additive 
GM P/N 1052358 (Canadian P/N 992694). 
Once the axle fluid has been changed the car must 
be driven in 8 - 10 SLOW figure eights to work the 
fluid between the clutch plates. 
Note 3: PRIOR TO INSTALLING THE FRICTION 
MODIFIER ADDITIVE FOR EITHER OF THE ABOVE 
REPAIRS THE BOTTLE MUST BE SHAKEN 
VIGOROUSLY FOR AT LEAST 1 MINUTE TO MIX THE 
ADDITIVE THOROUGHLY. 
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Last edited by Vet; 01-24-2008 at 10:38 PM.  
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