Replacing Chevy Trailblazer Spare tire mount/hoist.

It calls for 245/70R/16.......75R16's will fit but the tire height is different and may effect handling.

Does the shake match tire rotation or drive shaft rotation speed? If it's at tire rotation speed,have the new tires been dynamically balanced on a brand name motorized balancer?Re balance them that way.If a wheel weight has come off you will have a shake.You can also rotate the tires from front to back and see if that helps.Also,brake rotors can be out of balance and even with a perfectly balanced tire,the rotor can throw the balance off.

Most likely if they are both 4 speeds. There is a code on a sticker on top of trans. the first digit is the year and the other 3 are the model ( calibration and such). for example 2HCD and 5HCD are the same models just different years.As far as i know the 6 speeds were not availiable till 06 or 07 so you should be fine.

it is the sensor that is being pointed at in the cylinder head

15247311

The part number is 152477311

Look under back seat on passenger side

The best place to go and get one is the Salvage Yard, it's will cost you $25,00 if you pull it off the scrap trailblazer. Or you can have them pull one out for you but will cost more, Good luck and hope this helps. 

no the hoist must be replaced, they are famous for this, all trucks use the same one.

This is actually an easy swap out. Remove the electrical connection, remove the retaining bolt and pull out old one. I believe the sensor is located in the front passenger side of the engine on this particular model.