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Final drive ratio by trotterlg
Started on: 07-16-2013 09:37 PM
Replies: 4 (218 views)
Last post by: trotterlg on 07-16-2013 10:11 PM
trotterlg
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Report this Post07-16-2013 09:37 PM Click Here to See the Profile for trotterlgClick Here to Email trotterlgSend a Private Message to trotterlgEdit/Delete MessageReply w/QuoteDirect Link to This Post
How do I know the final drive ratio of my Muncy 4 speed? I know I should have counted turns when it was out, but now it is in and I am curious about the ratio. It is an early one, it has the extra shift cable holders cast into the case. It has bolted on cast shift cable holders for a Fiero. It has a sticker on it that says: 614DW M and a casting number that says GM CFM-7

Larry
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NJD85GT
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Report this Post07-16-2013 09:53 PM Click Here to See the Profile for NJD85GTSend a Private Message to NJD85GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
What is your RPM at a speed in 4th gear? And what is your tire size? Give me that and I can tell you.

Nate

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1985 GT | 4.9 Allante | M17/MY8 Hybrid 4-Spd Muncie | '88 GT Cradle Swap

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trotterlg
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Report this Post07-16-2013 09:58 PM Click Here to See the Profile for trotterlgClick Here to Email trotterlgSend a Private Message to trotterlgEdit/Delete MessageReply w/QuoteDirect Link to This Post
It doesn't drive yet, it is this one: engine
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NJD85GT
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Report this Post07-16-2013 10:05 PM Click Here to See the Profile for NJD85GTSend a Private Message to NJD85GTEdit/Delete MessageReply w/QuoteDirect Link to This Post
Ok then. Per this thread http://www.fiero.nl/forum/A...120111-2-112010.html you have an M19 which is a 4.10 final and 0.81 4th.

Nate

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1985 GT | 4.9 Allante | M17/MY8 Hybrid 4-Spd Muncie | '88 GT Cradle Swap

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trotterlg
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Report this Post07-16-2013 10:11 PM Click Here to See the Profile for trotterlgClick Here to Email trotterlgSend a Private Message to trotterlgEdit/Delete MessageReply w/QuoteDirect Link to This Post
Thanks for the link, this should work out fine I think, the engine should touch 7 with the cam and springs, should be interesting. Larry
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