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Ford 8 inch sizes

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StarDiero75
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Ford 8 inch sizes

Post #1 by StarDiero75 » Mon Oct 28, 2019 5:08 pm

Howdy guys,

I just thought it'd be good to have on here a list of all the 8 inch sizes so we know what will fit our Falcon's, Comet's, Mustang's, and Ranchero's. I believe these values are Hub to hub, not backing plate to backing plate. If you want backing plate to backing plate, subtract roughly 5" i think.

65-66 Mustang 57.25 inches
67-70 Mustang 59.25 inches
71-73 Mustang 61.25 inches
77-81 Versailles 58.50 inches
74 Maverick 8" 56.50 inches
75 Mustang II 8" 57.00 inches
67-73 Mustang, Torino, Ranchero, Fairlane 9" 59.25 inches to 61.25 inches
57-59 Ranchero and station wagon rears, 57.25 inches
66-77 Bronco 9", 58 inches
77-81 Granada/Versailles, 58 inches
67-71 Comet, Cougar, Mustang, Fairlane, 59.25 inches
71-73 Mustang, 61.25 inches
64 Falcon 58 inches
67 Cougar 60 inches
67 Fairlane 63.50 inches (coil springs)
72 Ford Van 3/4 ton 68 inches
73-86 65.25 inches
57-59 Ranchero and station wagon 57.25 iches (narrowest 9" housing)
66-77 Bronco 58 inches but has 5-on-5 1/2 inch diameter bolt circle
67-73 Torinos, Rancheros, Fairlanes 59.25 inches or 61.25 inches
67-71 Comets, Cougars, Fairlanes 59.25 inches

Go ahead and post perch measurements if you know them
Last edited by StarDiero75 on Mon Oct 28, 2019 6:37 pm, edited 1 time in total.
--1965 Ranchero w/1966 200, dual friction diaphram 9" Modern Driveline clutch and billet flywheel all balanced, 1985 SVO WC T5 with front shift, 1966 2.8 Ford 8", 2V converted built 1980 head, Autolite 2100 1.08, Dual out VI headers, Custom curved DUI, 256H Schneider cam 2.5 degrees advanced with dual roller chain, 2" exhaust with H pipe and Flowmaster 40s
--Creator of the only Weber 32/36 conversion video

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powerband
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Re: Ford 8 inch sizes

Post #2 by powerband » Mon Oct 28, 2019 6:18 pm

Thanks Stardiero75 for the useful chart.

the 8" works for almost all the Ford Six cars. The 'bolt in' sizes for early cars are limited though . I know the Maverick PERCh location works for 61Comet - Falcon and will fit modest wheel sizes under fender.

74 Maverick 8" 56.50 inches

these alternatives may need perch moved
75 Mustang II 8" 57.00 inches

Is the 57/59 an 8" or 9"?
57-59 Ranchero and station wagon rears, 57.25 inches

have fun
" Everything in my garage has a story ..."

bmbm40
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Re: Ford 8 inch sizes

Post #3 by bmbm40 » Mon Oct 28, 2019 6:23 pm

Hey this is a great idea. I have always wanted to know what the options are.
66 Bronco-1970 250, NV3550, DSII, 4 turn ps, uncut, 1" bl, 2.5" sl, front disc, twin stick D 20, 30 x 9.50
NEXT- direct mount 1.08 on D8 head, power brakes, rear limited slip, 3G, electric fan, electric upgrades, custom curved DSII, header, 31" tires

New guy? Get the Falcon Performance Handbook and Ford six high performance parts from https://vintageinlines.com

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chad
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Ford 8 inch sizes

Post #4 by chad » Mon Oct 28, 2019 6:28 pm

addin up more 'stickies'...
Should it say "Backing Plate to Backing Plate" or what exactly...
Looks like axle mounting face to mounting face (wheel) due to the
"4 lug v 5 lug" comment...
:?:
So, yeah, needs lots more info: perch mount, lugs, etc~
more info = more useful
(I know, we can pull an axel. reposition a perch, even 'cut'n turn' but...
Last edited by chad on Tue Oct 29, 2019 9:28 am, edited 2 times in total.
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), '69 250ci, NV 3550 & DSII, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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StarDiero75
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Re: Ford 8 inch sizes

Post #5 by StarDiero75 » Mon Oct 28, 2019 6:36 pm

powerband wrote:Thanks Stardiero75 for the useful chart.

the 8" works for almost all the Ford Six cars. The 'bolt in' sizes for early cars are limited though . I know the Maverick PERCh location works for 61Comet - Falcon and will fit modest wheel sizes under fender.

74 Maverick 8" 56.50 inches

these alternatives may need perch moved
75 Mustang II 8" 57.00 inches

Is the 57/59 an 8" or 9"?
57-59 Ranchero and station wagon rears, 57.25 inches

have fun

The 57/59 Ranchero's are 9"s and they are the narrowest as they come. Don't they fit in easily too?
--1965 Ranchero w/1966 200, dual friction diaphram 9" Modern Driveline clutch and billet flywheel all balanced, 1985 SVO WC T5 with front shift, 1966 2.8 Ford 8", 2V converted built 1980 head, Autolite 2100 1.08, Dual out VI headers, Custom curved DUI, 256H Schneider cam 2.5 degrees advanced with dual roller chain, 2" exhaust with H pipe and Flowmaster 40s
--Creator of the only Weber 32/36 conversion video

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chad
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Ford 8 inch width

Post #6 by chad » Mon Oct 28, 2019 6:42 pm

the guys I know R usin the 8.8...
May B an Explorer ?
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), '69 250ci, NV 3550 & DSII, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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Re: Ford 8 inch sizes

Post #7 by wsa111 » Mon Oct 28, 2019 9:06 pm

Chad, i believe all the Maverick,s have 4 lug wheel studs.
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bubba22349
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Re: Ford 8 inch sizes

Post #8 by bubba22349 » Mon Oct 28, 2019 9:40 pm

On Mavericks and Comets 8’s the 1975 to 1977’s (last year) all have 5 lugs. :thumbup: :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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chad
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Ford 8 inch sizes

Post #9 by chad » Tue Oct 29, 2019 9:19 am

“...all the Maverick,s have 4 lug wheel studs.”
“Mavericks and Comets 8’s the 1975 to 1977’s (last year) all have 5 lugs.”
Oo0Oh Kaaay ! more detail for the stickie I all ways say.

As an aside (he sez) I getting a lill more inta the end of ‘our’ run – the ‘80s (Granada, Fairmont, Zepher) guy’s got a disassembled Durango here. I love the Lima, ThriftPower, and Winsor. They could all usa “less then” (the famous) ‘nine inch’ (100 – 200 ft# tq)...its nice in my bronk but doesn’t hafta B everywhere (altho I C that too).

What more do we need to post a "falcon rear axel" sticky? I don't think its assembled here (ol archive or new 'read only'). A full axel type listing would B even better. I C a few posts on the lighter, earlier (wuz it 7 or 7 1/4? inch) these rigs had, gathered in one spot would B nice...
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), '69 250ci, NV 3550 & DSII, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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Re: Ford 8 inch sizes

Post #10 by DannyG » Tue Oct 29, 2019 11:41 am

The earlier Maverick 8" rearends do have the same 4 lug pattern as the Falcon/Mustang.
I'm not sure of the cut off/changeover to 5 lugs.
DannyG
C8 block, .040 over, zero decked. Forged Racetec pistons , D7 large log head .9:4 compression, CSC 264-112 cam going in a '65 Mustang one day...

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Re: Ford 8 inch sizes

Post #11 by chero1369 » Tue Oct 29, 2019 1:10 pm

grandbabymoma's 73 Mav. 8" 3.00 ratio,5 bolt.250 auto. drums all around.....76 disc,in a box,5 bolt.

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bubba22349
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Re: Ford 8 inch sizes

Post #12 by bubba22349 » Tue Oct 29, 2019 3:26 pm

The 1969 1/2 Mavericks had the choice of a 170 base engine or the 200 engine these both will have a 4 lug axel but this is an intragal 7 1/4 inch axel like was used in the earlyier Falcons. In 1970 the Maverick got upgraded with stronger front spindels, brakes, plus the 8 inch 4 lug axle, the 250 six was also first offed. In 1971 the 170 & 200 engines continued on they would still have the 4 lug pattern 8 inch axle pattern that matches the older Falcons and Comets. In 1973 the 200 became the base engine when the 170 was dropped. I believe that in 1973 they dropped the 4 lug axles and went to 5 lugs too. In late 1971 (Dec.) the 302 V8 engines were first offered in Mavericks & Comets. From 1971 on all 250’s sixes and all V8's will have the 5 lug 8 inch axels through to the end of their USA production in 1977. :nod:
A bad day Drag Racing is still better than a good day at work!

I am still hunting for a project car to build but with my current low budget it's not looking so good. My Ex- Fleet of Sixes these are all long gone! :bang: 1954 Customline 223 3 speed with O/D, 1963 Fairlane project drag car with BB6, 1977 Maverick 250 with C4, 1994 F-150 a 300 with 5 speed.

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chad
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Ford 8 inch sizes

Post #13 by chad » Tue Oct 29, 2019 6:10 pm

my lill pea sized brain is startin to get overwhelmed (dont take much).
Luv 2C something like Ryan's 'chart' expanded...may B a 3rd & 4th column?
(Yr, model, width, lugs, tq? o0OPPp - thats 5 already)
"Big thing is only make one change at a time. Change 2 or more things at a time it becomes difficult to figure which change helped or hurt" turbo2256b » 1/16/2017
Chad - '70 LUEB on '77 frame (i.e. PS, D44, trapezoidal BB 9", 4.11), '69 250ci, NV 3550 & DSII, "T" D20/PTO, 2" SL, 1" BL, 4 discs, 33"X15", tool boxes, etc. Seeking: Hydraulic gear motor for Koenig pto. chrlsful@aol.com (413) 259-1749

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Re: Ford 8 inch sizes

Post #14 by rickwrench » Wed Oct 30, 2019 4:13 am

4 lug 8" Mav brake flange. Same a Falcon 7.25":
Image

Somebody right now is wondering...
Nope, the 5 lug 8" Mav axles do not fit into a 4 lug 8" Mav housing.

Rick(wrench)
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Re: Ford 8 inch sizes

Post #15 by 63falconATX » Fri Dec 06, 2019 9:08 am

1963.5 Falcon V8, 55.625" (half year only) the absolute narrowest stock 8" Ford ever made. Measurement confirmed on the one sitting on my shop floor.

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