I brought this Gen 1 Bachmann 37 as 37429 in Regional Railways specifically to do up as 37425 in her current state with DRS. Hents why numbers and names are missing. However I'm sure alot of you know the exhausts and fan grill sit too proud on the roof. So I took the body off and the exhaust and roof fan grill pops out via locating pins (unscrew the fan first). From here smoothen out any glue inside the cut outs in the body, then carefully rub down the exhaust panel to a certain point and same with the supports in the body hole. Repeat this process for the roof fan grill (be careful as this can easily be broken during removal).

Once your happy with the new hight simply glue it back into place. I have also included a picture of Bachmann's latter gen 37099 exhaust as it's what I used as a reference to get the correct position.