The Same, But Not

Jp Magazine - - Dispatch -

Sev­eral dif­fer­ent ver­sions of the Dana Spicer model 18 trans­fer case have been made over the years. They are all ba­si­cally the same, but dif­fer­ent (as they say). Here’s a quick look at the Dana Spicer 18 ap­pli­ca­tions.

Mil­i­tary Trans­fer Cases (1941–1945) 1.97:1 low-range ra­tio

0.75-inch in­ter­me­di­ate shaft di­am­e­ter Twin-stick shifters

Early Civil­ian Model (1945–1946)

2.43:1 low-range ra­tio

0.75-inch in­ter­me­di­ate shaft 3.156-inch in­put hole

Twin-stick shifters

Mid Civil­ian Model (1946–1955)

2.46:1 low-range ra­tio

1.125-inch in­ter­me­di­ate shaft 3.156-inch in­put hole

Twin-stick shifters

Late Civil­ian Model (1955–1971)

2.46:1 low-range ra­tio

1.25-inch in­ter­me­di­ate shaft 3.156-inch in­put hole

Twin-stick shifters

Su­per Dana 18s (1966–1971)

Found be­hind the Buick V-6– equipped Jeeps

Used the stronger sis­ter Dana 20 case 2.46:1 low-range ra­tio

1.25-inch in­ter­me­di­ate shaft

Larger 4-inch in­put hole in case Sin­gle-stick shifter

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