I just googled your vehicle. I couldn't find an owners' manual, but I did find some pics of the front seat. It looks like you have sewn-on latch plates. So the lap belt and shoulder belt are both sewn onto the male end of the buckle. It also looks like your middle lap belt has the female end of the buckle on a long rigid stalk that is forward of the seat bight.
Sorry, I probably have more questions than answers here, but if you could answer these questions it would REALLY help us help you
- How tall & heavy is your daughter?
- Is she rear-facing, or would you consider rear-facing her in the truck?
- Are the 3 of you riding in the truck at the same time?
- Do you have top tether anchors installed?
- Do you have the owners' manual for the truck?
- Are the outboard latchplates sewn-on as in the pic below?
- Does the passenger-side lap belt ratchet back and lock once you pull it all the way out, or does it always freely go in & out of the retractor?
- Does the female end of your middle buckle sit forward of the seat bight as in the pic?
- Are the female ends of the buckles on webbing, or are they on plastic-covered metal cables?
- Is the female buckle for the middle belt on the driver's portion of the seat (in other words, does it move when the driver adjusts their seat)?