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| | | | Joined: Sep 2000 Posts: 390 Shop Shark | | Shop Shark Joined: Sep 2000 Posts: 390 | Has any one replaced a stock 3 sped with a 4speed.?Is it a direct swap or does the enclosed drive shaft need messing with?A friend has a 4 speed and i already have a hole in the floor board or 3.  My tranny craped out today and my 51 is my daily driver 
1942 1\2 Ton 1951 1\2 Ton 55 willys cj-5 1954 and 59 Cushman Scooter 1960 Biscayne Sedan 1965 G/10 panel van 1966 C/30 Grizzly Motorhome You know you're a 'Bolter when your daily driver is older than you are... My progress pics | | | | | Joined: Jun 2004 Posts: 8,597 Riding in the Passing Lane | | Riding in the Passing Lane Joined: Jun 2004 Posts: 8,597 | I,ve never done it but I believe it is a direct swap if the trans. is out of a48-54. You will need the taller cover to go with it. 
They say money can't buy happiness. It can buy old Chevy trucks though. Same thing. 1972 Chevy c10 Cheyenne SuperIn the Gallery Forum | | | | | Joined: May 2000 Posts: 424 Shop Shark | | Shop Shark Joined: May 2000 Posts: 424 | Ronnie-I know you'll need a u-joint for the 4-spd. If you want fix your 3-spd., I could donate some parts to the cause. | | | | | Joined: Sep 2000 Posts: 390 Shop Shark | | Shop Shark Joined: Sep 2000 Posts: 390 | Thanks for the info guys.Barry, imight have to take you up on that offer, the wifes been looking for a good excuse to go back to still water.I personally prefer the 3 on the tree as it offers a bit more room in the cab when ive got a kid or two and my two labs in the truck. Im hopeing to pull the tranny fiday and have a peek inside.I cant even hold it in 3rd gear anymore.
1942 1\2 Ton 1951 1\2 Ton 55 willys cj-5 1954 and 59 Cushman Scooter 1960 Biscayne Sedan 1965 G/10 panel van 1966 C/30 Grizzly Motorhome You know you're a 'Bolter when your daily driver is older than you are... My progress pics | | | | | Joined: Feb 2000 Posts: 132 Wrench Fetcher | | Wrench Fetcher Joined: Feb 2000 Posts: 132 | i've got the 4 speed all the way back to the rear if you need any small parts(might have to wait untill this white crap melts).
i'd send ya big parts but shipping WILL kill ya;)
i miss obscene phone calls...
| | | | | Joined: Aug 2000 Posts: 197 Member | | Member Joined: Aug 2000 Posts: 197 | I did this swap on a '47. You can use a 4 speed from a 1/2 or 3/4 ton but you will need the u-joint cross (tranny side) from the 1/2 ton 4 speed.
Jason
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