Picker slider

i need a drag link for a chevrolet front end but i dont know the year model no . or car. how can i find what i need

it is a  rear4 steer ,drum brake front end from a Chevrolet  29 inches in lenght

My understanding is that you are looking for some type of slider. If yes, please check these widgets:

Range Slider widget

Numeric Slider widget

Slider widget

Here's a guide on How-to-Add-a-Widget-to-your-Form.

Hope that helps. Thank you.