8 Rib Conversion Help

I tried searching my brains out but I couldn't find all the part numbers I needed. And I'm sure someone has all of them. I'm looking to put a 8 rib conversion together for a 05-09. Here is the info I need:

-Alternator pulley part number

-Power steering pulley part number

-A/C pulley part number (I think it's a YB-542)

-Can you just re-use the water pump pulley? It looks wide enough??

-How about idlers? I'm looking to do this as cheap as possible. Anyone have Gates or Dayco numbers or something? There are two different sizes right? 76mm and 90mm?

-Tensioner pulley. I think this is the same as the 76mm idler pulley though.

-I have the balancer figured out

That's it right?

Thanks!

I used everything from a 99 Expedition with a 5.4.

One idler and the tensioner is 76mm the other idler is 90mm.

The alternator pulley wasn't available at the auto parts store but I found one on eBay.

Also was told that same vintage trucks with a V10 came with 8 rib.

05moneypit said:

I used everything from a 99 Expedition with a 5.4.

One idler and the tensioner is 76mm the other idler is 90mm.

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By any chance do you know if you used wider idlers? Were they pretty billet or just wider stock style ones? I'm sure Dayco and Gates makes them wider. I just wouldn't really know how to search for them aside from mabe going to Vatozone and having them look them up for a 99 Expidition. But thay may not be the same OD.

The alternator pulley wasn't available at the auto parts store but I found one on eBay.

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Someone posted a Ford number once, I just can't find it.

Thanks

I found some A/C numbers. I found a YB-542 which looks like a Ford number and a F7UZ-19D784-AA which is a Ford number. Anyone know if these are the same thing?

Well, here is everything I think. Hopefully in the future someone can find it by doing a search on 8 rib conversion.

Balancer:

Dorman #594-112 (this is a 7" balancer so it is OD)

A/C pulley:

Ford #YB-542 (I think this is 05-09 only)

Power Steering:

Dorman #300-006

90mm idler:

Gates #38022

76mm idlers:

Gates #38028

Alternator pulley:

Ford #GP711

You can re-use the water pump pulley

Maybe this should be a sticky?

I just got an email from Dorman, the balancer is 7" total OD, that is not the pulley size. It is the stock 6.55" pulley size.

I can confirm the YB-542.
I just put one on last night.

gmitch said:

I found some A/C numbers. I found a YB-542 which looks like a Ford number and a F7UZ-19D784-AA which is a Ford number. Anyone know if these are the same thing?

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Same

From Bruce. Here is the link from another forum.. http://mustangforums.com/forum/4-6l-v8-technical-discussions/604903-diy-8-rib-conversion.html
Rockauto has everything. Yes you can use the water pump pulley. Some more info if needed. If you have an ATI 6 rib balancer part # 918039, ATI will cut two more ribs in the outer ring for a low price.

Parts list:

YB542 A/C compressor clutch pulley

GP720 Alternator pulley

38052 8 Rib idler pulley

300-006 Power steering pulley

38028 76mm idler pulley X2

38022 90mm idler pulley

4081252 Goodyear gatorback belt

i just looked up all the parts Gmitch gathered .

A/C Pulley $47
http://www.amazon.com/Ford-YB-542-PULLEY-COMPRESSOR/dp/B000NU8GV2

Crank pulley -$40
http://www.amazon.com/Dorman-594-112-Harmonic-Balancer/dp/B000C14FLC

Power Steering - $18
http://www.ebay.com/itm/BRAND-NEW-D...Parts_Accessories&hash=item4d219616ca&vxp=mtr

90mm - $22
http://www.amazon.com/Gates-38022-Belt-Drive-Pulley/dp/B000C2UI08

76mm - $16
http://www.ebay.com/itm/Belt-Tensio...Parts_Accessories&hash=item3ce51fbe5a&vxp=mtr

Alt. Pulley $12
http://www.amazon.com/Motorcraft-GP...TF8&qid=1406860835&sr=8-1&keywords=ford+gp711


So it looks like 155$ in parts.. thats damn cheap! thanks GMITCH!

isthatguy said:

i just looked up all the parts Gmitch gathered .

A/C Pulley $47
http://www.amazon.com/Ford-YB-542-PULLEY-COMPRESSOR/dp/B000NU8GV2

Crank pulley -$40
http://www.amazon.com/Dorman-594-112-Harmonic-Balancer/dp/B000C14FLC

Power Steering - $18
http://www.ebay.com/itm/BRAND-NEW-D...Parts_Accessories&hash=item4d219616ca&vxp=mtr

90mm - $22
http://www.amazon.com/Gates-38022-Belt-Drive-Pulley/dp/B000C2UI08

76mm - $16
http://www.ebay.com/itm/Belt-Tensio...Parts_Accessories&hash=item3ce51fbe5a&vxp=mtr

Alt. Pulley $12
http://www.amazon.com/Motorcraft-GP...TF8&qid=1406860835&sr=8-1&keywords=ford+gp711


So it looks like 155$ in parts.. thats damn cheap! thanks GMITCH!

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I lucked out. I was searching all over the place and a friend emailed me all the info.

gmitch said:

I lucked out. I was searching all over the place and a friend emailed me all the info.

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Did you order all the parts yet?

As long as we are confirmed this works, ill order!

I already have gmitch making me a 8rib pulley for the DOB setup

BruceH said:

Did you order all the parts yet?

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I was putting together a hypothetical blower kit with designs on marketing it. And I get asked the 8 rib thing all the time so it was a two-fer. I'll probably end up doing a 8 rib setup on my buddies/neighbors car that is getting the shortblock from you though. I'll have him run a Innovators West balancer (10% OD) and he has a Denso alternator so we'll need to put a 8 rib clutched pulley on that.

I'm sure it will be kinda fun doing his combo......and all the work. But it's mostly charity. I'll have him buy some stuff for my car an call it even.

gmitch said:

I was putting together a hypothetical blower kit with designs on marketing it. And I get asked the 8 rib thing all the time so it was a two-fer. I'll probably end up doing a 8 rib setup on my buddies/neighbors car that is getting the shortblock from you though. I'll have him run a Innovators West balancer (10% OD) and he has a Denso alternator so we'll need to put a 8 rib clutched pulley on that.

I'm sure it will be kinda fun doing his combo......and all the work. But it's mostly charity. I'll have him buy some stuff for my car an call it even.

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I can send an 8 rib idler, 76mm smooth and 90mm smooth with the block if you can use them.

Hey if your buddy has one of your 200amp alternators I have that super rare crazy ass 8rib underdriven clutched alt pulley with correct offset so no shim is required... I will have it back soon

BruceH said:

I can send an 8 rib idler, 76mm smooth and 90mm smooth with the block if you can use them.

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Cool, I'll let you know. Thanks!

crownaviation said:

Hey if your buddy has one of your 200amp alternators I have that super rare crazy ass 8rib underdriven clutched alt pulley with correct offset so no shim is required... I will have it back soon

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Denso

had a 35% coupon code for advance auto..

ordered some parts for the 8 rib conversion.

they had Dayco brand idler pulleys smooth and ribbed.

90mm Part No: 89048
76mm Part No: 89016
76mm ribbed Part No: 89053
Power steering Part No 300-006

GI Joe had 8 rib kits years ago. I got one back in 2008 I believe.