What size of car jack for 2002 4dr dodge dakota?

[Laura R]

we are going on a long trip and want to be prepared. We are going to buy a jack in case we get a flat. The factory one that came with it when we bought it (used) is too small. The truck is a 2002 Dodge Dakota, quad cab. What size of jack do we need to buy? Thanks

[Giovani]

home depo has a 6 ton piston type hydraulic jack for 19.00

the center pole screws out,
this will work fine
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