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Lee Thompson Forum Newbie Posts 60 |
06-11-12 04:21 AM - Post#2235675
I am looking @ a 62 impala with a factory 3 speed on the column. If I should want to go to a Muncie 4 speed, what problems would I encounter other than a shifter, ie. front and rear spline count--length of trans---would the clutch have to be changed? Thanks--new member here.---Lee |
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arnieg141 Dedicated Enthusiast Posts 6121 
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06-11-12 04:58 AM - Post#2235683
none every thing works to gether..if your on a budget a good choice is a saginaw 4 speed you can get for about 1/4 price of munci
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wagonmaster Moderator Posts 8022 
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06-11-12 05:03 AM - Post#2235686
I've done this swap. The main thing is drive shaft length. The rest was good to go!Don't forget the hole you must cut in the floor for the shifter.....
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arnieg141 Dedicated Enthusiast Posts 6121
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06-11-12 11:31 AM - Post#2235823
joe going from 3 to 4 speed the drive shaft should be ready to go
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aawtech American Autowire "Site Sponsor" Posts 3735 |
06-11-12 12:00 PM - Post#2235829
No Arnie, They are not good to go. The 4 speed driveshaft is different than the stock 3 speed. That's why late great 4 speed driveshafts are so expensive,so sought after and so hard to find. They are different. Donny |
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Chevrobert Frequent Contributor Posts 1744 |
06-11-12 12:19 PM - Post#2235835
I don't know about the rest of it, I could be wrong(not the first time  ) But I think the 4 speed is a longer tranny equaling the need for a shorter drive shaft. Or a master welder 
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66cayne Frequent Contributor Posts 1810 |
06-11-12 12:45 PM - Post#2235845
You will need to disconnect the 3 speed shift linkage at the bottom of the column and if you want it to look correct you will need a 4 speed steering column too. |
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Lee Thompson Forum Newbie Posts 60 |
06-11-12 01:32 PM - Post#2235870
Thanks for the replies---I am aware of ther steering column and the need to make a 4 speed shifter hole. I assume the lever can be removed from the 3 speed column. Keep in mind I am new to 62 Impalas. Lots to learn!!!! Any value in the 3 speed?---Lee |
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arnieg141 Dedicated Enthusiast Posts 6121
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06-11-12 02:12 PM - Post#2235887
No Arnie, They are not good to go. The 4 speed driveshaft is different than the stock 3 speed. That's why late great 4 speed driveshafts are so expensive,so sought after and so hard to find. They are different. Donny don would not be first time i was wrong. but since the 3 speed drive shaft is longer should not be that exensive to have it cut down and balanced
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62sedan Very Senior Member Posts 3355 
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06-11-12 03:13 PM - Post#2235910
Here are the individual front driveshaft lengths that I've posted many times in the past......... Lengths of FRONT driveshafts 59-64 4-speed & 3-speed w/OD front shaft= 24 5/8" 59-64 3-speed & 59-61 Turboglide front shaft= 29 3/4" 59-64 Powerglide front shaft= 26 13/16" Measurement is tip to tip length with front shaft completely disassembled.... front U-joint and slip yoke removed, center U-joint flange and center bearing removed.
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Red64SS "3rd Year" Silver Supporting Member Posts 333 
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06-11-12 03:40 PM - Post#2235920
This is my game plan for my 64 2-dr post w/muncie http://www.show-cars.com/cgi-bin/commerce.cgi?prea...
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arnieg141 Dedicated Enthusiast Posts 6121
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06-11-12 04:06 PM - Post#2235928
red thats a cheep fix for him then $159.00 for a new front drive shaft. better than getting the old one cut and balanced
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Lee Thompson Forum Newbie Posts 60 |
06-11-12 04:35 PM - Post#2235947
Thank you--you guys are great !!!!--Lee |
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Mad Joe Contributor Posts 392 
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06-11-12 07:28 PM - Post#2236015
Lee: let me chime in. In your first post you were asking about using the original clutch, pressure plate and throw out bearing. Unless they were changed in the last few miles, I would be replacing all. No need to have to go back in to replace them later. I call it cheap insurance. |
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Lee Thompson Forum Newbie Posts 60 |
06-12-12 12:46 PM - Post#2236264
True!!! |
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wagonmaster Moderator Posts 8022
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06-13-12 05:05 AM - Post#2236518
joe going from 3 to 4 speed the drive shaft should be ready to go There are long and short tail shaft three speeds. I had a 6 cyl three speed in mine with the shorter tail shaft and the stock powerglide drive shaft worked (don't recall the length)when I changed it over in 1966.
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doubleE Valued Contributor Posts 3694 
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06-13-12 04:13 PM - Post#2236788
"There are long and short tail shaft three speeds. I had a 6 cyl three speed in mine with the shorter tail shaft and the stock powerglide drive shaft worked (don't recall the length)when I changed it over in 1966." That makes sense to me. Back in the 70s I replaced a blown cast iron PG with a 3 speed stick on a 62 Impala 283 and used the same driveshaft with no modifications. Eric
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