Trans. change - need your advice

[grandam455]

I was told that the sunfire auto trans. will bolt in to a fiero with 2.5 with no problems just add a shift improver, I have a 1999 sunfire that is rotted out but trans. works good and would like the overdrive, has anybody done this? if so any problems or is it a bolt in. Your advice on this trans. change would be greatly appreciated. Thanks Tom

[Dan]

As long as your donor is off a 2.2 that has the same bell housing as the Fiero engines. You will need to make mounts and a shifter bracket to get it working and deal with the tranny VSS that is most likely not the 4000 PPM that the Fiero uses. Dan

[aaron88]

Dan, don't you mean 2200.  Although it is a 2.2L I think there is a different motor also available in 2.2 for that year.

Make sure the motor looks like this:

[aaron88]

Like Dan said, you will also need one of these to convert your speedo signal.

http://www.dakotadigital.com/index.cfm/page/ptype=product/product_id=126/category_id=287/home_id=59/mode=prod/prd126.htm

.

[grandam455]

Thanks guys, would the overdrive auto out of a x-car be a better fit seeing you could order them with the 2.5 being they are front wheel drive. Yes aaron that is the engine. I appreciate your advice as I am just looking to improve the drivability  of the 2.5. Tom