inchworm dual transfercase gear ratio

[1986bj75]

i recently bought a brand new 2008 inchworm transfercase that has been sitting in storage all its life and i cant figure out the gear ratios, in high rear. low front in is 2.3 to 1,
but in low rear. high front it is 4.7 to one which i know is proper but when i do low both it is 9.5 to one im not sure if im missing a gear ratio as it also does 7 to one and anything i find on the internet says if it has 9 to one it shouldn't have 2.3 to one.

 

[gnob]

is this left drop or right? chain drive rear or gear?

 

[1986bj75]

is this left drop or right? chain drive rear or gear?

it is a gear drive right hand drop

 

[1986bj75]

is this left drop or right? chain drive rear or gear?

 

[gnob]

then it should be a 2.28 x 4.7
i know there are some 4.0 gear sets out there
but math is (2.28x4.7) 10.7 double low
(2.28 x 4.0) 9.12

 

[1986bj75]

then it should be a 2.28 x 4.7
i know there are some 4.0 gear sets out there
but math is (2.28x4.7) 10.7 double low
(2.28 x 4.0) 9.12

oh i see i did the math wrong thank you for your help i misunderstood how to do gear ratios.