Gif Built Buggy

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Broken rear CV

both Joints and the H broke 

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Driveshaft Universal Joint Dimensions and Torque Ratings
 
Series    Cap-to-Cap     Diameter    Continuous    Short-Term Max    Deformation Max    Angularity
1310         3.22                 1.08               130lbs-ft         800lbs-ft                 1,600lbs-ft                  30o
1330         3.63                 1.08               150lbs-ft         890lbs-ft                 1,850lbs-ft                  20o
1350         3.63                 1.19               210lbs-ft         1,240lbs-ft                 2,260lbs-ft                  30o
1410         4.19                 1.19               250lbs-ft         1,500lbs-ft                 2,700lbs-ft                  27o

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Transmission is out.    (9 HR job  )
Going to talk to my tranny builder and see what upgrades I should do.

[Ryan]

You should talk to your chassis builder as well. 9 hours to get the motor and trans out is a little annoying.

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You should talk to your chassis builder as well. 9 hours to get the motor and trans out is a little annoying.

A lot annoying

But my fault for thinking a Craigslist tranny would be "ok".

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Tranny upgrade list: rated to 650hp and 600 ft lbs of torque

Towing rebuild kit
Heavy Duty "Beast" Sun Shell
Corvette 2nd and 4th Gear Servo
Upgraded reverse boost valve
Alto red eagle red band
Sonnax pinless accumulators
5 pinion planets from a denali series 4l65e
10 or 13 vane pump upgrade
29 Element Sprag

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My junk yard search was a good one.
I scored a Ford Super Duty front driveshaft and a front shaft from a late 80's blazer.

The Ford shaft is a great source for 1 ton parts.

First, the CV is a true Spicer 1350.  Next the Slip yoke is also a 1350 with a 1.5" 16 spline.

For my use I need to mod the flange to mate to the stock 241 output flange.

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The R3 GM is on the right. 

The Ford center hole is only 2".    So I had to open it up to the GM 3.125"

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Ford before and after pic



GM 241 Output flange.

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Here are the rest of the ford parts.

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The blazer front shaft is a 1/2 ton CV 1310. The drive shaft I broke uses this style. 

On my driveshaft the slip yoke is a Ford 1350  with a 1.5" 16 spline and uses 1/4" wall tube.

I rebuilt this shaft to have as a spare.   This time I used Spicer 1310 non greasable u-joints.
I could see obvious break points at the grease fittings on the joints that blew apart.

 I know it will hold up to a lot of abuse, however I wont trust this shaft for crazy heavy use as I have learned...

[Wingman]

Nice work!