I have an 84 that was a 2.5L iron duke...I was just wondering how I can find out which tranny I have? is there a link to VIN decoding for the fiero?

you have to use the RPO code sheet on the drivers front inside fender under the hood.

there will be a bunch of 3 digit codes.
MY8 is the 3.32 tranny
M19 is the 4.10

out of curiosity was there a trim model the 4:10 was offered in? like a SE? or was it just pretty much a random distribution? also is there a chart of there gear ratios for the different 4 speeds somewhere?

edit: I found the chart, so n/m on that question

[This message has been edited by wicked93gs (edited 08-27-2006).]

1st 2nd 3rd 4th 5th Drive RPO
1984 L4 3.53 1.95 1.24 0.73 3.32 MY8
1984 L4 3.53 1.95 1.24 0.73 4.10 M19
1985 L4 3.73 2.04 1.45 1.03 0.74 3.35 MT2
1985 V6 3.31 1.95 1.24 0.81 3.65 M17
1986 L4 3.73 2.04 1.45 1.03 0.74 3.35 MT2
1986 V6 3.31 1.95 1.24 0.81 3.65 M17
1987 L4 3.73 2.04 1.45 1.03 0.74 3.35 MT2
1987 V6 3.50 2.05 1.38 0.94 0.72 3.61 MG2
1988 L4 3.73 2.04 1.45 1.03 0.74 3.35 MT2
1988 V6 3.50 2.05 1.38 0.94 0.72 3.61 MG2

and yes, they were totally random, that's why you have to look at the RPO codes