<VV> Other Vehicles With The Same Gear Lube Requirements

[BobHelt at aol.com]

Erich,
This is what makes understanding all the specs so difficult.
 
MIL-L- 2105B preceded the GL spec listing. When that list was selected and  
published, the B version of the spec was converted to GL-4.  But the later  
C and D versions of that spec were converted to GL-5. Thus if one were to 
miss  the change from B to C/D he would certainly think that GL-5 was the 
correct lube  for these transmissions.
Bob Helt
 
 
In a message dated 4/11/2015 1:56:40 P.M. US Mountain Standard Time,  
virtualvairs at corvair.org writes:

I am not  making a recommendation here but only pointing out the fact that 
GM recommends  GL-5 gear lubricant for my 1972 M21 whereas GM recommended 
MIL-L-2105B gear  lube for the Corvette M21 in the mid sixties which was the 
same spec used  on standard transmission Corvairs in the mid sixties.  Take 
it for what  it's worth. 

Erich Meyer