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Jag rear install help

Ray Sicina

New Member
I’m trying to put a “69” Jag rear in an old 1923 T-Bucket kit car. I have been using the common sense approach on
the installation but now I’m thinking common sense might not be so common. This build is being driven by how I think the cars stance should look so that’s how I have gotten to where I am. My approach was to have the driveline sit level in the car so the output of the GM Turbo 350 transmission is in perfect alignment with the Jag rear pinion, so when all is said and done the distance between the rear shaft of the transmission to the pinion drive plate is 13-1/8” and the offset side to side is 1-1/8”. Needless to say my major concern at this point is driveshaft angle and can I make this work. I guess I convinced myself that since the rear and transmission don’t move a steeper driveshaft angle could be tolerated.
I have seen may 1923 T-Buckets with Jag rears and I can’t believe I’m the only one that will have a short driveshaft like this so I’m hoping that there is a solution so I can get the look I want. Is there anyone out there that has done a similar build and could provide guidance on how you dealt with driveshaft angle.
I welcome any comments or advise.
Thanks,
Ray

 
I’m trying to put a “69” Jag rear in an old 1923 T-Bucket kit car. I have been using the common sense approach on
the installation but now I’m thinking common sense might not be so common. This build is being driven by how I think the cars stance should look so that’s how I have gotten to where I am. My approach was to have the driveline sit level in the car so the output of the GM Turbo 350 transmission is in perfect alignment with the Jag rear pinion, so when all is said and done the distance between the rear shaft of the transmission to the pinion drive plate is 13-1/8” and the offset side to side is 1-1/8”. Needless to say my major concern at this point is driveshaft angle and can I make this work. I guess I convinced myself that since the rear and transmission don’t move a steeper driveshaft angle could be tolerated.
I have seen may 1923 T-Buckets with Jag rears and I can’t believe I’m the only one that will have a short driveshaft like this so I’m hoping that there is a solution so I can get the look I want. Is there anyone out there that has done a similar build and could provide guidance on how you dealt with driveshaft angle.
I welcome any comments or advise.
Thanks,
Ray
My drive shaft angle, output from the transmission to input of the rear-end (pinion angle) is zero degrees. I got the stance I wanted with tires and rims. My drive shaft went from 6" with the Ford 9" rear-end to just over 13" when I put the Jag rear-end in. You are right, there will be no flexing of the drive shaft u-joints.
 
I have always set my cars up with the look I want, and have never given any thought to drive shaft angle. One probably has 10 deg. down and the same to the side if not more. All cars combined have way more than 100,000 wheel spinning miles with very fat tires, and never a broken U-joint. Just sayin.
 
I have always set my cars up with the look I want, and have never given any thought to drive shaft angle. One probably has 10 deg. down and the same to the side if not more. All cars combined have way more than 100,000 wheel spinning miles with very fat tires, and never a broken U-joint. Just sayin.
That's exactly what I wanted to hear, I will post pictures of my build when possible, but since I'm new to the forum I have to post 10 times before I can post pictures.
Ray
 

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