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In a tractor not sure but I run a basically stock p/g with good band and clutches behind a 900 hp Hemi

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In a tractor not sure but I run a basically stock p/g with good band and clutches behind a 900 hp Hemi

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Really? So basically just find a junkyard pg and change the bands and clutches and it's ready to go behind 900hps? No wonder people are changing over

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In a tractor not sure but I run a basically stock p/g with good band and clutches behind a 900 hp Hemi

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Stock out and no straight cut gears? What ratio and does the ratio matter to strength?

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stock gears

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Fred I don't know how you get away with that.

I broke an aftermarket planetary with my 900HP small block that makes far less torque than your hemi.

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I have heard of way more aftermarket gear sets breaking than stock 1.76 believe it or not.

OK
Will this have a break?
If so depending on what type of break, diff mods needs to be done (dump holes drilled etc.)
This lets the pressure dump off the reverse piston, which makes for a much quicker leave.

Use the good clutches, I used the thin ones about .070 thick compared to .100, which enabled me to get more into the forward clutch drum without milling etc. Which was about 7 in my case, but really depends on the piston style/thickness. Shoot for .075-.100 total clutch pack clearance total in the front drum.

The factory clutch hub, needs to be replaced, the factory is thin pop metal, and isn't wide enough to allow additional clutches.

Also ditch the servo piston for a duel ring setup, I never had any luck with the nylon/Teflon type, I prefer the cast iron ring style.

Get as many clutches as possible in the reverse side when using a Brake (extra Holding) if not running a break, just replace the clutches with same number high quality clutches, its not like your going to be racing in reverse LOL.

Replace the input shaft for a 300M or hard unit, I prefer the 350 turbo spline, better... read more choices, and finding used ones etc.

There is some pump mods that can be done too.

I done some simple mods as these, and I have had good luck using stock 1.76 gear sets. I pulled 1.07 60ft in a heavy dragster (1800-1900+ lbs), although they are light, it still had to take those 6K brake launches.

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The stock 1.82 is junk, hold a 1.76 and 1.82 next to each other and you will see. On a glide the planetary is the output shaft. My first one was a ATI somewhat high dollar piece that lasted 75 passes before exploding on launch, after beating it out of the trans we rebuilt it at the track with a stock 1.76 someone had. I ran the stock one for another 175 passes at 8.50 in a 2450 lbs car (still good at teardown). I then upgraded to a Hughes killer billet one and have had it in since (8 years?).

Cores. There are two ways to ID a 1.76 or 1.82 planetary trans. The input shafts are different lengths by .25" (14 5/8 & 14 7/8 I think) and the O.D. of the output shafts are different. Sorry I don't remember what they are at the moment but can look it up.

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