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Four speed conversion

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Old May 15, 2011 | 02:49 PM
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Default Four speed conversion

I would like to swap the 700R4 in my '79 for a manual. I have looked at the Keisler kits but they are really pricey. I have an M-21 and a bunch of bellhousings and flywheels lying around, so I might just swap that stuff in instead. Any advice from someone who has done it?
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Old May 15, 2011 | 02:55 PM
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Here's somthing I used as a parts reference...





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Old May 15, 2011 | 03:51 PM
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Stick with the 5 speed. The M21 is a non overdrive trans with terrible gear ratios for the street. What is your rear gear ratio.
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Old May 15, 2011 | 07:03 PM
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Keep one bellhousing/flywheel, sell the 700R, M21 and the rest of the pieces and buy a TKO 5/600 (you shouldn't be too out of pocket after you turn the other stuff into cash) /:\
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Old May 15, 2011 | 07:59 PM
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I agree, do a 5spd instead. I just finished installing a Tremec TKO 600, it is a different car!

BTW, I didn't use any of the mechanical clutch linkage parts or the bellhousing from my TKO kit, I changed my mind at the last minute and went with a hydraulic clutch and a scattershield instead. I will be selling all that brand new stuff. I also have a spare set of pedals I will be selling. Let me know if you are interested in any of it.

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Old May 16, 2011 | 12:21 AM
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Drwet, I thought I had sent you a copy of my narrative outlining the swap...seems like I had sent it to about 20 people in the last month or so. If I haven't already PM me with your email address and I'll send you a copy.
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Old May 16, 2011 | 07:05 AM
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Originally Posted by Gordonm
Stick with the 5 speed. The M21 is a non overdrive trans with terrible gear ratios for the street. What is your rear gear ratio.
stick with a five speed and don't look back, it's well worth the investment!
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