I picked this rearend up last year and was told it came out of a 69 Ford Bronco..can anyone verify this or give me some info on it..I've done some reasearch on it...it's a small bearing unit....it has the 9/16" nuts on the backing plate mounts..and these are also flat on each of the side.....has casting # C5AW 4666A ??...OR 4888A...OR 4668A...hard to see this..see pics below..Also wondering where and what size drums should I used...would like to buy a new set...any deals on who to buy from...thanks!! Also measures 58" wide...axle flange to axle flange..
what is the wheel bolt pattern? bronco should be 5 on 5-1/2" how wide is it wheel mounting surface to wheel mounting surface? bronco is 58"
I have owned quite a few early Bronco rear ends ... ( they are perfect for the early V8 Fords I mess with ) The small axle bearing ones ( like yours ) uses a 10 inch brake drum. NAPA part number is ND 4401460 They list for $73.49 each. Garage price is less The large axle bearing ones uses a standard 11 inch drum that was also available on Ford F-100 pickups. NAPA 4401073 Price is only $37.99 each ... list price ... garage price is less. The larger ones are a LOT less expensive because they SELL a lot of them ( F-100 pickups ) Unfortunately ... the smaller ones are early Bronco only and do not sell as many. You casnnot switch the backing plates to get the less expensive drums because of the axle bearing size and bolt pattern.
Don't 8" axle drums/plates/outers bolt on as well? Could help in finding some. Provided the lug pattern is the same.
Glad I checked..looks like I have the small bearings..the axle plates are round on one side...I was checking the wrong area before...so tell me if I'm right...small bearings???...so what size brake shoes do I need...I have a set of 2-1/2"..???...and looks like I need the pricey drums..
if your backing plates are held on with nuts that use a 9/16 wrench you have 3/8" bolts.....that should be small bearing
I just found this file on my system...it was all here in front of me...dame I hate getting old... Early Bronco Axle Specifications Rear Axle Specifications '66-'75, 28 spline, big bearing short side: 26 15/16" long side: 29 1/4" '66-'75 28 spline, small bearing short side: 27 1/8" long side: 29 5/8" '74-'75 28 spline, big bearing/small brakes short side: 27 1/4" long side: 29 3/4" '76- '77 28 spline, big bearing/big brakes short side: 27 3/16" long side: 29 11/16" Brake Specifications 66-75 small bearing 10 x 2.5 74-75 medium duty 10 x 2.5 66-77 large bearing 11 x 1.75 76-77 11 x 2.25 Rear Axle Bearings Application *Seal Bearing I.D. O.D. 69-78 Bronco 2780 and 2900lb 9568 rw-207-ccra 1.3780 2.8346 69-78 Bronco 2780 and 2900lb 9568 rw-207-ccra 1.3780 2.8346 69-77 Bronco 3300lb 51098 514003 1.5312 3.1496 Tapered Roller Bearing 3195 a-20 1.5625 3.1483 Axle Shaft Seals 71-77 Bronco 5131 66-71 Bronco (from 3/18) 480570 66 Bronco (to 3/17) 40652s EB rear axle info: ALSO.............................................. ............................................... Types of 9" Housings For one thing, housings come with various brake shoe widths 1 ¾", 2.00" and 2 ¼ " as well as different spline counts and bearing sizes. '67-73 Mustang/Cougar - are light duty, with the thinnest housing material, and a 3" diameter housing at U-bolts. They include small axle bearings, 28 and 31 splines. '57-68 passenger car and 1/2 ton truck - are medium duty, stronger than Mustang type, 28 and 31 splines Ranchero/Torino have a heavy duty thick wall housing, 3 ¼ inch diameter axle tubes with flat tops. '69-77 Galaxies (coils), Lincolns (coils), and late pickups (leaf)- are 3 ¼ inch in diameter all the way to the backing plate, coil housings have upper control arm mount. ------------------------------------------------------------------------------------------------------------- How To Recognize 9" Housing Centers They do NOT have a removable rear inspection cover. '57 - no dimples, flat center band up the center of the rear cover, bottom drain plug. '58-59 - two dimples on back of housing, flat center band, some had drain holes. '60-67 have two dimples, flat center band, oil level hole in back cover. '63-77 Lincoln, LTD, and Thunderbirds had 9 3/8 inch centers, housings were cut away at the gasket surface for ring gear clearance, one curved rib at the front top portion of differential, strong but poor selection of axle ratios. ------------------------------------------------------------------------------------------------------------- Types of 9" Axles 28 spline axles cannot be shortened and re-splined (they're tapered). '72 and earlier 31 spline axles have the ability to be shortened . '73 and later 9" (cars) have a 5 X 5 ½ " bolt circle and the axles cannot be shortened . '67-73 Mustang axles are identified by wheel flange center, with oval hole/recess - 28 splines, with two large holes/recesses and a counter sunk center - 31 splines Given a choice of 28 or 31 spine axles, you want the stronger 31spline versions. ------------------------------------------------------------------------------------------------------------- More Facts 5 X 5 ½ " lug pattern is a "truck" bolt pattern, 5 X 4 ½ " is a "car" bolt pattern. A 9" complete rear axle is approximately 35 pounds heavier than an 8.8" rear axle with approximately the same components. It is common to find a 9" in a old Falcon or Comet that has had a HIPO SMALL block with 31 splines and a locker. If the case has two vertical ribs from the top to middle of the case it is a good IRON type. If, in the very center of this case, there is the letter "N" then this is a NODULAR CASE. This is the strongest factory case made by Ford. ------------------------------------------------------------------------------------------------------------- 9" Rear Axle Width Information Axle Widths quoted below are axle flange to axle flange (roughly equates to rear track) '65-66 Mustang 57¼" 57-59 Ranchero and station wagon 57¼" (narrowest 9" housing) '66-77 Bronco 58 inches but has 5 X 5 ½" diameter bolt circle 67-70 Mustang 59¼" "77-81 Lincoln Versailles 58 ½" (probably has disc brakes) 57-59 Ranchero and station wagon rears, 57¼" '66-77 Bronco 9", 58 inches '77-81 Granada 58 inches '67-71 Comet, Cougar, Fairlane, 59¼" 64 Falcon 58 inches 57-72 F-100 measures 61¼" (5 X 5 ½ " bolt pattern) 71-73 Mustang- measures 60 - 61¼" (Not all are 9", some are 8") (5 X 4 ½" bolt pattern) 67-73 Torino, Ranchero, Fairlane- 9" 59¼"to 61¼" 67 Cougar- 60 inches 89-01 - Ford Explorer 8.8" 59¼" 59 ½ " (5 X 4 ½ "car" bolt pattern) 89 Lincoln Mark VII- (per F100Connection.com) (width unknown) 67 Fairlane- 63 ½" (coil springs) '72 Ford Van 3/4 ton- 68 inches '73-86 Ford Vans- 65 ¼" The rationale for providing information on rear ends deemed too narrow or too wide is two-fold 1. It saves you the trouble of measuring them to see if we missed them. 2. You may want something normally considered too narrow or too wide due to the offset of your wheels. __________________
I basicly have the same rear end except I have 3" bearings I am having a problem finding brake drums they are 11x21/4 with a pilot hole of 2.4 with 5x41/2 . have 28 spline axels . the rear endhas no tag but a # i found is RF-C5AW-4668-C SURE COULD USE SOME HELP
Looks like there was serious rust on this before sand blasting: Hmmm, I tried to paste it full size, didn't work.
Beanscoot you do understand that Charie 1 dug up a thread that was dead for 9 years and one month before he found it this morning? Charlie 1 are you positive you have that center hole correct? Plus a lot of Fords with 2-1/4 shoes run 2-1/2 inch drums.
Hey , that is my rear end I have lookin for where that got away to for years . It has my initials shown clearly on the wheel ! ha ha ! My friend you have an early Bronco .
I didn't look at the dates, I just am interested in Ford differentials. But it turned out for the best, Deathrow Dave found his old diffy!
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