9" Ford Rear End is DESTROYED! What do you think Broke? Not what I was expecting!

The 9" Ford rear end broke...... This was a 28 pinion spline, for sure not the best for high horsepower but I thought it would work in a pinch..... But something broke bad.... What do you think caused this failure? This center section has been sitting for several years in a box, was it user error or just over powered it? Thanks for watching guys!
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[@davedave2525]

At that power level it's time for a Strange Ultra Center section!

[@scottsmith5623]

What he said ⬆️

[@timothycraft5448]

On my 9” the oil hole goes on the top to catch oil from the ring gear. Just my observation.

[@cchevyboy]

I can smell this video 😂

[@FORCFED]

The bearing metal is probably on sensor causing it to work than not sometimes. Goooo Randy 😎👍💪

[@HeadFlowInc]

Short or bad ground 99.44% of the time with electrical gremlins. 👍

[@Blain5700]

PMR to the front! Letssssssssss Gooooooo!!

[@sonnyjones1353]

Gld to see your back in a mustang again congratulations

[@alexvelez2141]

Nice shop Randy

[@mannmadesbc]

Enjoyed the content, as always!

[@tomhamilton9140]

Hope the repair will be a long term cure.

[@darrellsnow1463]

Add a ground from body to rear-end housing

[@freddiemoralez1536]

🎉🎉 THANKS FOR THE UPDATE AND GOD BLESS ALL 🎉🎉

[@kevinlarrick3285]

It’s funny to read the comments and how many people are experts on just watching the videos and seem to know what’s wrong with it lol

[@robertdouglas3456]

Great job of R & R Randy & TJohn!🤩🤩

[@toddclark332]

Been there done that and it sucks more money more money 😂 guys thanks hope you boy's have a great week later 👍

[@DSRE535]

Those pro gears have a tiny bit of flex in the teeth so that they can handle more shock load so when you try to run street gears on these high horsepower cars they usually crack all the teeth and they don’t last more than a few passes at the most !

[@FoolPullDiesel]

Still want to see that Race….. J Doc// PMod Randy

[@Tump97]

Just had the same thing happen to mine lol same exact bearing failed on mine

[@robertbray5735]

Check the rear seal on transmission?????maybe

[@richardharris492]

In Florida, I'd say it was plugged by a dirt dobber, lol. They find and fill every hole they can

[@DonCatherman]

Race break fix. Repeat. 😅... 😎👍💯

[@donaldgray5561]

Need ultra case 10” pro gears

[@jkfonyi]

Whatever happened to Tyson he had the green mustang and another car . Haven’t seen him at the races in awhile

[@kevintaylor7740]

Crush collar or solid spacer..?

[@robertbruneau112]

niether, was missing in video

[@Hjfvvdst]

Maybe an 11" is in order.

[@skatepunk6894]

Was that a strange failure?

[@dennykatz157]

Rear end fluid?

[@robertbruneau112]

colapsable spacer looks to be missing, improper bearing preload. i have had it happen

[@timothycraft5448]

Most everyone uses solid spacers instead of a collapsible one. Just add or remove shims to get the correct preload.

[@jondahl3173]

I had my grand daughter's 9 inch center section from her dirt track car handed to me to fix. Found the company that they purchased the assembled center section from didn't put the solid spacer in. Went together real nice after I got that part!

[@robertbruneau112]

@@timothycraft5448 for sure but without either you have what we have here today

[@robertbruneau112]

@@jondahl3173 it has to have either colapsable or solid after preload is determined. if none is put in pinion bearings will come apart

[@jondahl3173]

@@robertbruneau112 Hate to be hard on ya, but I have spent most of my life as an auto repair technician, and have rebuilt numerous differentials from car to 2 Ton GM trucks to quick change race cars. Think I know what's inside of one...

[@jheibeck6059]

First comment live the channel john

[@robertbray5735]

Do you run pro gear…..lol….softer to flex…..You guys already know that stuff……go Showmod Randy…….

[@707SLAYER]

You are still stuck on use an reuse it will get you 90% OF THE TIME ....