5 pinion billet planetary for the 4472

SY-1193

Active member
Re: 5 pinion billet planetary for the 4472

Doesn't take long for you guys to figure things out.
I actually saw that in a post from : 01001010 01100101 01100110 01100110 00100000 01010011 01100011 01101111 01110100 01110100 and did one for myself.

Keith
 

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

01000010 01100001 01100100 01000001 01110011 01110011 00100000 01110000 01101100 01100001 01101110 01100101 01110100 01100001 01110010 01111001 00100000 01100111 01100101 01100001 01110010 01110011 01100101 01110100

:d
 

WyoSyclone

Active member
Re: 5 pinion billet planetary for the 4472

George Blake;638262The original gear ratio with the 4 pinion and 38 tooth stock sun gear shaft was 2.8421052 to 1. The new gear ratio with the 5 pinion and 35 tooth 4340 sun gear shaft is 3:1. [/QUOTE said:
Hey George, just because I'm a dork when it comes to trannys and transfer cases - I take it the above change in ratios affects both front and rear sets of drive wheels, and not just the fronts? (I usually have to physically have something in front of me and play with it to figure it out :oops:).... Awesome looking part!
 

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

Gear ratio change is insignificant. The reason I mentioned it was because BW's ratio was a weird 2.8.........blah blah blah....The New shaft is a neat 3:1. When you look at the two pieces together and do the math, it makes you wonder why they did that. Everything just turned out so much nicer. Bigger teeth on the sun gear shaft and more meat at the base of the teeth was a REALLY nice benefit.
As far as HOW it works, the torque isn't split 3:1. The torque is split via the viscous. Depending on where the force is applied(slip/grab), the viscous tries to balance it.
This is a very unique setup to say the least. Of course, why BW made a bastard tooth count AND a square planetary just doesn't make sense.
But yes it affects BOTH. Won't just affect the front. It's able to do both because it's a simple planetary and not a compound.
You need to get a set. Pictures don't do these justice and I'm not doing any more of them. Even Kevin is worn out from the deal. This just turned out so well.
 

WyoSyclone

Active member
Re: 5 pinion billet planetary for the 4472

Gear ratio change is insignificant. The reason I mentioned it was because BW's ratio was a weird 2.8.........blah blah blah....The New shaft is a neat 3:1. When you look at the two pieces together and do the math, it makes you wonder why they did that. Everything just turned out so much nicer. Bigger teeth on the sun gear shaft and more meat at the base of the teeth was a REALLY nice benefit.
As far as HOW it works, the torque isn't split 3:1. The torque is split via the viscous. Depending on where the force is applied(slip/grab), the viscous tries to balance it.
This is a very unique setup to say the least. Of course, why BW made a bastard tooth count AND a square planetary just doesn't make sense.

OK.... that makes sense.. thanks for the explanation :D
I've seen the OEM's sell their firstborn to save 1 penny on a part... maybe it was the penny pinchers in BW that had the final say... once again.. awesome part!
 

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

OK.... that makes sense.. thanks for the explanation :D
I've seen the OEM's sell their firstborn to save 1 penny on a part... maybe it was the penny pinchers in BW that had the final say... once again.. awesome part!
That may help explain how the case works as well. Basically the input shaft spins the planetary. The sun gear shaft presents resistance via the viscous as the sun gear shaft splines INTO the teeth of the spur gears on the planetary. The viscous and the planetary are splined to the SAME ring gear. The sun gear shaft is splined to cog #805 that turns the front wheels(this is how resistance is fed to the viscous from the front). The viscous can lock the ring gear to the planet (full hump or 4 wheel drive) or it can creat slip based on where the slip happens (front or rear). The rear presents it's resistance through the RING gear via the output shaft. Isn't that cool? When you first look at it, it doesn't make sense, then you start imagining the power routing, then the fog clears.
 

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

Brandon Eldred (Paid In Full for everything) X2 setups
Robert Stevenson (Paid In Full for everything)
Keith Watson (Paid in Full for everything)
David Enama (Paid in Full for everything)
Jamie Hacking (Paid in Full for everything)
David Saunders (Waiting on additional info)
Mike Bamford (Waiting on additional info)
Mike Lee (planetary paid for. Waiting for sun gear shaft payment)
Callran Woo(planetary paid for. Waiting for sun gear shaft payment)
Nolan Nykyforuk (planetary paid for. Waiting for sun gear shaft payment)

Bob Brown (pending)
Glen Sheeley (2 units pending)
Matt Luggery (pending)
 
Last edited:

LIL QIK

HELL YEA I GOT BOOST!
Re: 5 pinion billet planetary for the 4472

Hey George.....shot you a pm....just waiting to make the payment on mine....

Thanks....Dave
 

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

Brandon Eldred (Paid In Full for everything) X2 setups
Robert Stevenson (Paid In Full for everything)
Keith Watson (Paid in Full for everything)
David Enama (Paid in Full for everything)
Jamie Hacking (Paid in Full for everything)
David Saunders (Paid in Full for everything)
Mike Bamford (Paid in Full for everything)
Nolan Nykyforuk (Paid in Full for everything)
Callran Woo(Paid in Full for everything)
Rob Trivilino (Paid in Full for everything)
Mike Lee (Paid in Full for everything)
Vito Verde(Paid in Full for everything)
Glen Sheeley (paid in Full for everything)



Matt Luggery (pending)
 
Last edited:

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

Updated Participant list.
Just a reminder, these will be done December 14th.
It'll be a nice Christmas present. Put the sun gear shaft in the planetary along with a 32 spline billet input shaft and tell your wife it's man's Christmas candle holder.
 
Last edited:

SYTY66

New member
Re: 5 pinion billet planetary for the 4472

Updated Participant list.
Just a reminder, these will be done December 14th.
It'll be a nice Christmas present. Put the sun gear shaft in the planetary along with a 32 spline billet input shaft and tell your wife it's man's Christmas candle holder.

I have 2 trucks but would like at least 1 set. Let me know if any kit is available?
 

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

It was really nice talking to you! You have a great Thanksgiving!
Also updated list.
 

420

Broke Ass Racing
Re: 5 pinion billet planetary for the 4472

George, left you a VM. Give me a call when you can so I can get paid up :)
 

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

Brandon Eldred (Paid In Full for everything) X2 setups
Robert Stevenson (Paid In Full for everything)
Keith Watson (Paid in Full for everything)
David Enama (Paid in Full for everything)
Jamie Hacking (Paid in Full for everything)
David Saunders (Paid in Full for everything)
Mike Bamford (Paid in Full for everything)
Nolan Nykyforuk (Paid in Full for everything)
Callran Woo(Paid in Full for everything)
Rob Trivilino (Paid in Full for everything)
Mike Lee (Paid in Full for everything)
Vito Verde(Paid in Full for everything)
Glen Sheeley (paid in Full for everything)
Matt Luggery (Paid in Full for everything)
Theodore Parrish (Paid in Full for everything)
Dariel Bleechington (Paid in Full for everything)



Thanks so much for everyone's patience and I'll get these out on Dec 14th along with any other components you may have purchased if you did at the same time.
I'll have to close it up right now and if there are enough components left that I build up a few extra, I will make them available.
At this time I have 17 units paid for. Planetaries are complete and as soon as the sun gear shafts are done, I'll get it moving and update the list.
 
Last edited:

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

Went up and gave the monies to Kevin today and everything is on schedule. The sun gears are done with the first cut and off to heat treat as of yesterday. Should be back friday for final fitment of each piece, get the bushings pressed in the sun gears and they'll be ready by monday. Only thing that could hold it up now is if there is a delay at heat treat. You guys will have all your goodies by Christmas!!!!
 

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

OK. There was a hangup at heat treat. Being a thin wall tube (sun gear shaft), they had to figure out the best way to set it up during heat treat so it didn't deform. They got it figured out, had to be hung in a special fixture during heat treat. They are gonna press in the bushings and do a finish bore size in place. Fingers crossed for Wednesday.
 

George Blake

DONATING MEMBER
Re: 5 pinion billet planetary for the 4472

Guess what I've got? ;)
Lots of pictures coming and a full writeup as I assemble the units I have here. I have 4 I'm doing. Everyone else that just ordered the planetaries, those will go out first, and then those that ordered bearings, washers, bushings, those will go out last. If anyone is looking for the front case bushing, there was a HUGE error at Allomatic and the front case bushings for the BW4472/BW1372 are all WRONG. They made the INSIDE diameter of the bushing the size the OUTSIDE diameter was supposed to be.
What you need to ask for in the mean time is a front case bushing for a BW4404 transfer case. Fits PERFECT. As soon as all of those come in, I'll send those kits out. Sorry it's taking so long. I just want everything to be right when you open the box.
Lots of pictures. It's a gear heads wet dream, guys. These things are gorgeous.
Now, one thing to note. The bushings that are in the sun gear shafts were manufactured and trued up after being installed into the shaft. They were given .003" clearance. This means that you have to line the input shaft up PERFECT for it to slide in as the bushing was also made LONGER to give greater support to the input shaft. Same idea behind the wide bushings for the front stators of the 700 and the 80 and the sun gear of the 700. I've incorporated every single method of drivetrain stability into these units that I have been exposed to in order to make the best product possible.

Something I wanted you to know. You guys by doing this supported a small American "ma and pa" machine shop during a time when everything is going overseas to make it CHEAPER instead of better. Kevin is the owner and he was very particular and it shows. Every single unit was hand fit during the clearance check while I stood there. It was WORTH the wait.
 
Top