yo JESSE,
No problem asking here, ever!
Front on 80 through 96 Broncos is a The Dana 44-IFS (Independent Front Suspension). The 44-IFS is on vehicles equipped with front coil springs. The 44-IFS may be equipped with either automatic hubs or manual hublocks. The front axle is of the integral carrier-housing, hypoid-gear type, in which the centerline of the drive pinion is mounted above the centerline of the ring gear.
On IFS front driving axles, the cover on the front of the carrier housing is integral with the left axle arm assembly. A metal tag, stamped with the gear ratio and part number is secured to the housing by one of the carrier mounting bolts
Dana 44 Solid Front Axle Parts Diagram & Cover Depiction, Solid Axle in 78-79 @
http://www.broncocity.com/78_79_techpages/78_79_dana44.htm
Rear is a Ford 8.8
Some owner/shops may have swapped components since new.
I made a mistake 15 years ago by telling someone to use the Driver's side label to ID their Rear Differential (axle, pumpkin type, etc.); turned out that a previous owner had swapped a Dana 60 in place of the stock 8.8
so... a run down;
8.8 Information, History, ID, pics, etc.; "...8.8” rear’s have a ten bolt inspection plate on the back that’s about 10” from the center of the top bolt to the bottom bolt center..."
Source: by Kenneth C at
http://www.badshoeproductions.com/rear.html
See 9" & 10.25", as well as Dana 44 front in 80 through 96.
Axle (aka Differential) Codes by Ford & Helm via Keith L (TTB Blows, Bling-Bling) at
http://web.archive.org/web/20020220012159/http://90bronco.homestead.com/axlecode.html
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btw,
Differential/GEAR FAQs, Determine Ratio, Open or Closed Diff (Posi or Locker), etc. - GREAT INFO! Recommended Gear Ratio, General; "...Differential Gear Ratio determines the number of times the drive shaft (or pinion) will rotate for each turn of the wheels (or ring gear). So if you have a 3.73:1 gear ratio the drive shaft turns 3.73 times for every turn of the wheel. Gear ratio is calculated by dividing the number of teeth on the ring gear by the number of teeth on the pinion gear. The higher the number, the lower the ratio: a 5.29 gear has a lower ratio than a 4.10 gear. With a lower gear ratio the drive shaft (and thus the engine) turns more for each revolution of the wheel, delivering more power and torque to the wheel for any given speed. Lower ratios are generally desirable when going off-road. Higher ratios are better for freeway driving since they run at lower RPM's and offer better fuel economy. Changing tire size affects the final drive ratio. Switching from a 30" tire to a 35" tire changes the final drive ratio by about 17%. This may drop the engine out of its' "power band" and result in poor performance and fuel economy. To restore performance you must change the gear ratio to compensate for the change in tire size. If you originally had 3.07 gears you need a ratio that is approximately 17% lower, such as 3.55. If you want to increase off road performance you might want a 4.10 or lower ratio. Recommended Engine RPM @ Highway Speed; 4 cylinder 2200 - 3200; V6 cylinder 2000 - 3200; Small block 1800 - 2800; Big block 1800 - 2600; Diesel: 1600-2800. A limited slip or positraction differential typically uses some form of clutches that bind up the differential, providing traction to the both tires. The clutches will slip to some extent to allow tires to turn at different speeds on corners. Some limited slip differentials are more aggressive than others, and some can be set up or "pre-loaded" more or less aggressively. Limited slip units require a special gear oil additive and may chatter when turning. Clutch packs may also wear with time and require replacement. Jack up one tire if you have an open diff, or both tires if you have a working posi or locking differential. Rotate the tire one full revolution for posis and lockers and 2 full revolutions for open diffs. Carefully count the number of full revolutions the driveshaft makes. This is your gear ratio. In other words, if the drive shaft turns 3 ¾ turns, you probably have a 3.73 gear ratio. Turning the tire for twice the number of full revolutions and dividing the drive shaft revolutions by two will give you a more accurate reading. Put the transmission in neutral and jack up both tires. Turn one tire. If the other tire spins the opposite direction you have an open differential, and if it spins the same direction you have a posi or a locker..."
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"...Ford typically builds 4WD trucks with a slightly faster/numerically lower front gear ratio than the rear so that off-road steering is enhanced. So a truck built with 3.55 rear gears will have 3.54 front; 3.08 rear - 3.07 front; 4.11 rear - 4.10 front, etc..." Following was in my MS WORD Notes and the source, Randy's Ring & Pinion has removed it from their current web site; The gear ratio in the front of a four wheel drive has to be different from the front so the front wheels will pull more. There have been many different ratio combinations used in four-wheel drive vehicles, but not so that the front will pull more. Gear manufactures use different ratios for many different reasons. Some of those reasons are: strength, gear life, noise (or lack of it), geometric constraints, or simply because of the tooling they have available. I have seen Ford use a 3.50 ratio in the rear with a 3.54 in the front, or a 4.11 in the rear with a 4.09 in the front. As long as the front and rear ratios are within 1%, the vehicle works just fine on the road, and can even be as different as 2% for off-road use with no side effects. point difference in ratio is equal to 1%. To find the percentage difference in ratios it is necessary to divide, not subtract. In order to find the difference, divide one ratio by the other and look at the numbers to the right of the decimal point to see how far they vary from 1.00. For example: 3.54 ÷ 3.50 = 1.01, or 1%, not 4% different. And likewise 4.11 ÷ 4.09 = 1.005, or only a 1/2% difference. These differences are about the same as a 1/3" variation in front to rear tire height, which probably happens more often than we realize. A difference in the ratio will damage the transfer case. Any extreme difference in front and rear ratios or front and rear tire height will put undue force on the drive train. However, any difference will put strain on all parts of the drivetrain. The forces generated from the difference have to travel through the axle assemblies and the driveshafts to get to the transfer case. These excessive forces can just as easily break a front u-joint or rear spider gear as well as parts in the transfer case. By me here
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VIN Decoder Chart for 81-86 & 87-96 Bronco & Ford Trucks BEST!
Source: by lmctruck.com @
http://www.lmctruck.com/icatalog/fd/full.aspx?Page=11
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TRANSMISSION;
Door Sticker Codes for Automatic and manual Transmissions by Seabrook at
http://broncozone.com/topic/10386-transmission-id-chart/
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Automatic:
Identification;E4OD have 20 pan bolts; P, R, N, (D), 2, 1 shift pattern - Indicator pic by Chris A @
http://www.supermoto...ry/media/117390
AOD have 14 pan bolts, see diagram & pic; P-R-N-(D)-D-1 shifter pattern, note, OD is actually a (D) - Indicator pic by trigger @
http://img.photobuck...ageFSJ/a4-1.jpg
C6 have 17 pan bolts, see diagram & pic; P-R-N-D-2-1, shifter pattern - Indicator pic by miesk5 @
http://web.archive.org/web/20110814085713/http://www.broncolinks.com/gallery_images/C6ShiftIndicatorpic.JPG
C 6, AOD E4OD, 4R Pan Identification & Driver Side pic
Source: by technicalvideos @
http://www.technical...nsmission.phtml
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TRANSFER CASE;
Borg Warner Identification; "...The model number is cast into the rear housing, and sometimes stamped into an ID tag on a tailhousing bolt. This is a 93 EB Bronco1356 ESOF..." Source: by Steve83 (Steve, That dirty old truck) at
Depictions; 1345, 1350 & 1356
Source: by Ventures Truck Parts and Equipment L.C.
http://www.venturest..._identification
Difference/Measurements, 1356 vs, NEW PROCESS 205 in a 94
some measurements I took from front face (mounting surface of case) to the end of the output shaft on front and rear of each
BW Front is -3 3/4"
bw rear is - 17 1/4"
205 front is + 3" (meaning, its forward of the mounting surface by 3")
205 rear is - 11 3/4
Source: by Damon H (Plug Ugly)
NEW PROCESS 203 Exterior Parts Diagrams; Shifter Assembly, Mounts, Transmission Adapter, etc.
Source: by Indybronco
208 Pics, Identification Tag and specs
Source: by blueovaltrucks.com
http://www.blueovalt...nsfer_cases.htm
See more @
http://broncozone.com/topic/22440-drivetrain-identification/
