Idler Pulley

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Jun 20, 2018 | 03:57 PM

JRT812

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Mountain Pass

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Idler Pulley

Where does this attach on a 78 f150 400? Appreciate the help.

Jun 20, 2018 | 04:04 PM

balexander

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Just tried to send you a picture of set up. Disregard that the compressor is aftermarket, the idler pulley is attached to the original compressor bracket.

Jun 20, 2018 | 04:05 PM

balexander

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Jun 20, 2018 | 04:37 PM

JRT812

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Mountain Pass

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Quote:

Originally Posted by balexander

Just tried to send you a picture of set up. Disregard that the compressor is aftermarket, the idler pulley is attached to the original compressor bracket.

Thanks! Preparing to do AC, but do I need that bracket as well? If I do, would you know where I may order one? Ordered a similar looking pulley and just prepping for the weekend.

Jun 20, 2018 | 04:43 PM

JRT812

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Mountain Pass

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For some reason I don’t have the pulley or that bracket

Jun 20, 2018 | 05:30 PM

balexander

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It bolts to the top of the compressor in those two holes. Also a bolt on the water pump or block. Can't remember. No one that I could find made it aftermarket. I put an ad on Craigslist and found someone locally who was parting a truck out and bought both brackets. Check e-bay or the junk yard, or do what I did and put a message out locally or on this forum. Good luck, you'll find one eventually!

Jun 20, 2018 | 05:59 PM

JRT812

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Mountain Pass

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Thanks my man!

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Jun 25, 2018 | 02:43 AM

JRT812

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Mountain Pass

Joined: Jul 2017

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Quote:

Originally Posted by NumberDummy

thanks ND and apologize for the late response. It’s the adjustable side.

Jun 25, 2018 | 03:20 PM

#10

NumberDummy

Ford Parts Specialist

Joined: Nov 2006

Posts: 88,826

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From: Simi Valley, CA

Quote:

Originally Posted by JRT812

thanks ND and apologize for the late response. It’s the adjustable side.

D8OZ-8678-A (replaced D0AZ-8678-C) .. Adjustable Idler Pulley-Use with factory installed integral A/C (Motorcraft YS-103) / Obsolete

Misc applications: 1970/79 F100 302 // 1973/76 F100/350 360/390 // 1973/79 F100/350 460 // 1977/79 F100/350 351M/400 /// 1970/71 Thunderbird 429.

1970/72 Mustang/Cougar 302/351C/351W // 1978/79 Bronco 351M/400 // 1978/79 LTD/LTD II/Ranchero/Thunderbird/Cougar/Granada/Monarch/Versailles 302/351W

NOS PARTS SOURCE in Olathe KS has 1 = 913-220-5746.

KLIMESH MOTOR SALES in Calmar IA has 1 = 563-562-3241.

MUSTANG SERVICE CENTER in North Hollywood CA has 1 = 818-765-9266.

MUSTANGS ETC. in Van Nuys CA has 2 = 818-787-7634.
---------------------------------------------------------------
D0AZ-8678-C =

NOS PARTS SOURCE has 1.

AAAA AUTOMOTIVE in Howe TX has 10 = 903-546-0024.