I am thinking about building a fixture to run in 9 inch Ford chunks before putting them in the car. It's hard to properly break in a set of gears on a race car . The manufacturer recommends running them and cooling them off and putting miles on them. Has anyone built one ? I am thinking about using a center of a 9 inch by cutting the axle tubes off and welding plate s over the ends. Then come up with an electric motor setup to turn the yoke. Most of the ones I build use a spool so driving the axles would not be an issue.
Haven't made one but I'd think it would be a piece of cake. Like you said a housing with just the center section, tubes cut and blocked. I'd just take a pulley and weld a plate that could bolt to the u_joint flange and run a electric motor and fan belt to the pulley. Think it would work great.
Which would take a stout electric motor to turn it at any speed. You're probably close to building a dyno to do it right.
Drive it to get heat into it. We always just set them up, drove up and down the road or the roads at the drag strip, let it cool off then off to the water burnout and go! Ask Quain what they do.
That's the way I have been doing it for years. Just a few laps around the block and on the trailer. Boneyard51 it won't fit in my Nissan pickup or I would . It is not practical because my spool is 33 splines. I can just see putting a 6.00 gear in a daily driver to break it in. On the dirt track cars we would just put them on jack stands and stick them in high gear and run them for about a half hour checking them for heat every ten minutes and then cool them off. Drain the gear oil and put synthetic in and run them. I am sure Nascar has a setup to run their differentials in.
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