Disney's Haunted House ride - that's pretty much spot on.
Whether it is right or not I did as described above. Three holes under the back, two in line and take the axle bit so that's right and then that just leaves the third hole which is central so I put the spring piece in there running the same way as the axle. I did not use a second reign guide piece, just the one cab roof front. I took the other to be a spare as it was moulded onto a different sprue and one was slightly mis-cast. On the whole the casting was very good, I had more trouble as my usual glue of choice just did not want to bond the resin to metal.
cheers Svennn