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Old 01-17-2014, 04:22 PM
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1953 Chevy 3100 Drive line angle questions

I have a 1953 Chevy 3100 that I grafted a 1977 Nova sub frame onto. In the back I have installed a Ford 8.8" posi rearend with 4.10 gears and disc brakes out of a mid 90's Ford Explorer.

I got it positioned and made some supports for the rear shackle mounts.
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Old 01-17-2014, 04:25 PM
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moving to suspension forums
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Old 01-17-2014, 04:26 PM
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The truck will have a 350 engine matted to a 700r4 transmission. I will have to get a drive shaft made, but right now I need to figure out my driveline angles.

As the rearend sits now in the chassis with NO body weight, I have a 14 degree pinion angle. I know that they make shims to correct this. What suggestions do you guys have?

Would I be better off to order a 10-12 degree shim kit or cut the spring pads off and reclock them on the axle tubes?
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Old 01-17-2014, 04:28 PM
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Originally Posted by Crosley View Post
moving to suspension forums
Sorry! I clicked submit before I completed my thought process.

I was not sure if this fell under "suspension" or "driveline."
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Old 01-17-2014, 06:22 PM
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I would redo the spring perches.......The angle of the drive shaft coming off the transmission should be the same as the drive shaft going into the rear end
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Old 01-17-2014, 08:08 PM
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I have a similar project, 350sb, 700r4. I went with a 4 bar rear suspension with coil overs off the axel tubes. and my angles are both 3 degrees. definately need them the same. That seems pretty severe.
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Old 01-18-2014, 10:09 AM
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Originally Posted by poncho62 View Post
I would redo the spring perches.......The angle of the drive shaft coming off the transmission should be the same as the drive shaft going into the rear end
How much do you think my pinion angle will change once the body and accompanying weight is sitting on the frame?
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Old 01-18-2014, 10:13 AM
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Quote:
Originally Posted by bbeins View Post
I have a similar project, 350sb, 700r4. I went with a 4 bar rear suspension with coil overs off the axel tubes. and my angles are both 3 degrees. definately need them the same. That seems pretty severe.
Everything that I am reading and hearing is 2-4 degrees is ideal. I guess I need to get the engine/transmission situated before I worry too much about pinion angle.
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Old 01-18-2014, 12:52 PM
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I estimated weight of fuel,passengers, and yet to be installed body parts and piled weight to frame to get close. I probably got to 2 to 4 degrees off this forum, and went with 3.
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Old 01-18-2014, 01:50 PM
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I estimated weight of fuel,passengers, and yet to be installed body parts and piled weight to frame to get close. I probably got to 2 to 4 degrees off this forum, and went with 3.
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Old 01-18-2014, 02:34 PM
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While we are discussing angles, here is another question.

The Ford 8.8" differential is not centered and the yoke is 2.5" off center. I know this is different than pinion angle, but it is this something that needs to be considered?
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Old 01-18-2014, 03:02 PM
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Here's a link that should answer most of your questions.
http://www2.dana.com/pdf/J3311-1-DSSP.pdf
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Old 01-21-2014, 08:32 AM
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Here's a link that should answer most of your questions.
http://www2.dana.com/pdf/J3311-1-DSSP.pdf
Interesting read - thanks!

I am concerned about the "compound" angle on the driveshaft, since the 8.8" is not centered. The drive line will be angled left and up.

Does anyone have a setup like this? Do/did you have any issues with vibration?

Did Ford offset engine/transmission location to the right since the differential is offset 2.5" to the right?
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Old 01-21-2014, 09:03 AM
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