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Transmission id by capn_r
Started on: 07-14-2015 09:00 PM
Replies: 2 (59 views)
Last post by: olejoedad on 07-14-2015 09:48 PM
capn_r
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Report this Post07-14-2015 09:00 PM Click Here to See the Profile for capn_rSend a Private Message to capn_rEdit/Delete MessageReply w/QuoteDirect Link to This Post
If the option tag is missing is there another way to id which four speed an 84 model has? Will something from the vin tell me or do I need to do a shaft revolution counting thing. Thanks
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zzzhuh
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Report this Post07-14-2015 09:22 PM Click Here to See the Profile for zzzhuhSend a Private Message to zzzhuhEdit/Delete MessageReply w/QuoteDirect Link to This Post
The search function is the best thing to use. Or you can go to google and type in "Fiero 4 speed manual" and you will find it.

Also, if you mention the year your fiero is, it helps us help you.

Welcome to the forums!
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olejoedad
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Report this Post07-14-2015 09:48 PM Click Here to See the Profile for olejoedadClick Here to Email olejoedadSend a Private Message to olejoedadEdit/Delete MessageReply w/QuoteDirect Link to This Post
Two manual trans available in 84.
Most common was the M19 with a final drive of 4:10/1.
Also available was the MY8 with a final drive of 3.32/1.
The cases of both earlier transmissions had no ribbing for reinforcement.
Later four speeds (85-86) (M17) has extensive ribbing for strength and featured a 3.65/1 final drive.
If you have the car the trans came from, the RPO sticker on the left front wheel well will have M17 or MY8 in the codes.

No sticker? Put it in 4th and count the revolutions.
Due the the fourth gear OD, revolution counts will be 2.42/1 for the MY8, and 3.18/1 for the M19
The later model revolution count will be 2.96/1.
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