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FORD BRONCO
-> DRIVELINE; axles, bearings, differentials, gears, re-gearing, LOCKING HUBS, 8 lug swaps, U joints
-> Universal Joint
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WELCOME to MIESK5's BIG BRONCO LINKS - We now have over 26,000 LINKs!
This is a Ford Bronco, Truck & Van Technical & Parts LINKS site developed by the MIESK5 Family & is not affiliated with the Ford Motor Co. in any manner.
Although we initially developed this site for 78-96 Big Broncos, information in many Links also applies to F, E Series & Cars. UPDATE; all Links via web.archive may be down; Copy orig. URL & go to http://replay.waybackmachine.org/ to search for the new archived copy
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Guidelines for Modifying Light Truck Drivelines TSB 92-1A-9 for 89 & After Bronco, Econoline & F Series
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Installation, Removal & Repairs
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Universal Joint TSB 97-20-15 for 90-96
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1330 & 1350 pics in a 96
Source: by lawdog78 at FSB
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Clocking Info
Source: by Pony-Boy (Repo'd, Blackhorse, Howard S) at FSB
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Clocking Info
Source: by Pony-Boy (Repo'd, Blackhorse, Howard S) at SuperMotors.net
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Clunk, Driveshaft in a 96; "...could be a few things.. U-joints going out on the driveshaft, slip shaft needs greasing or 3rd member is warn and loose. get under and see if there is any side to side movement with the ujoints on the shaft, there shouldnt be any side movement at all; than grease your slip-joint (search) and go from there...& by ElKabong (Ken, El Kabong); Instead of sliding into the t-case like a car driveshaft would into a trans, a Bronco driveshaft normally is two pieces that slide together. The slipshaft is normally covered by a rubber boot in the middle like in the pic below; When you check the u-joints as Spiked described, park it on a flat spot, block the wheels & put it in neutral. That way the driveshaft will be free to move if the u-joints are bad..."
Source: by spikedzombies (O' Black Betty) & by ElKabong (Ken, El Kabong) at FSB
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Clunk, Driveshaft in a 96; "...take it out, mark it, and separate it at the slip yoke. Grease the splines heavily, and put it back together, using new clamps on the rubber boot. Be sure to mark it before taking it apart, in order to line the splines up the same way. You can also drill and tap and install a zerk fitting in the outer part of the shaft..."
Source: by spdloader at Ford Forums
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CTM U-Joint & Axle Shaft, Chromolly 4340 Rebuild in an 81
Source: by Larry S (The Bronc, Larston, Lars915, Lars) at geocities via web.archive.org
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Dana 44 Solid Axle Replacement Article
Source: by Randy's Ring & Pinion
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Dimensions & Series Numbers
Source: by Dana www2.dana.com
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Double Cardan Driveshaft Overview, diagrams, etc. in 78-79
Source: by Broncobill78 (Dave) at Ford Bronco Zone Forums
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Double Cardan U-Joint Overview, Parts Break-Out Diagrams from 1996 F-150, 250, 350 (4x4), and Bronco Workshop Manual; "...The Bronco rear driveshaft is of the double Cardan type which incorporates two universal joints, a driveshaft centering socket yoke (4782), and a driveshaft center yoke (4784) at the transfer case end of each shaft. A single universal joint is used at the axle end of the driveshaft..." READ MORE
Source: by Ford via thedieselstop.com
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Driveshaft Location Video in an 86 5.0
Source: by JKossarides ("The Bronco", Jean) at SuperMotors.net
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Driveshaft Parts Break-Out Diagram, Front & Rear for 92-96 Bronco from 1996 F-150, 250, 350 (4x4), and Bronco Workshop Manual; "...Driveshaft with Double Cardan U-Joint...." READ MORE; miesk5 Note see #6 7B214 Transfer Case Yoke (Flange)
Source: by Ford via thedieselstop.com
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Flange Depiction in 1356 Manual Shift Parts Break-Out Diagram w/nomenclature; Miesk5 Note, see #5 Extension (Rear Spline) Cap, Bearing (Rear Yoke/Flange) (Serviced As Part of 7085 Assembly) thru #8 -- Flange (Rear Flange) (Serviced As Part of 7B214 Assembly); Steve labelled it as "Bronco Fixed Yoke"
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net
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Front Axle U-Joints 101 (1517 KB)
Source: by Randy's Ring & Pinion
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Identification, Driveshaft in 90-96 Bronco, 90-97 Aerostar, Econoline, F Series, Ranger; 91-97 Explorer; 97 Expedition, Mountaineer
Source: by Steve83 (Steve, That dirty old truck) at SuperMotors.net
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Lubricant And Maintenance Materials Specifications & Capacity Charts for 96 Bronco, F-150, F-250, F-350 & F-Super Duty
Source: by Ford via thedieselstop.com
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Lubrication Diagram in a 78
Source: by Indybronco (Lula Mae) at SuperMotors.net
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Operating Angles, general; "...When you rework a chassis or install a new driveshaft in a vehicle, make sure that you follow the basic rules that apply to universal.." read more
Source: by 2.dana.com
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Parts Break-Out Diagram; "...Note that greasable u-joints are physically weaker (due to the grease journals drilled through them), and those with the grease fitting screwed in between the trunnions even moreso, due to the wedge effect of the threads. They are also less durable, due to their seals constantly being blown out by the grease being pumped through them. A sealed u-joint (which should be greased before installation, and can be re-greased by disassembly later) is stronger & lasts longer; To check u-joints while the d'shaft is installed, set the e-brake, shift to N, and see how far you can rotate the t-case output back&forth WITHOUT moving the rear axle yoke/companion flange. Also see how far up&down you can push the d'shaft..." Miesk5 Note; See #22 Transfer Case Yoke (Flange) 7B214 for Bronco @ transfer case
Source: by Ford via Steve83 (Steve, That dirty old truck) at SuperMotors.net
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PTFE Lubricant; For use with: driveshaft slip yokes; especially where grunt-type noise is experienced; eliminating squeaks between plastic parts; speedometer cables; stops squeaking, sticking & binding
Source: by fcsdchemicalsandlubricants.com
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Replacement Discussion
Source: by members at FSB
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Size Charts & Overview, Driveshaft
Source: by therangerstation.com
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Superduty 1350, Driveshaft pics in a 90
Source: by Chris S (Swat, Carcass, Blown, CLYDE) at SuperMotors.net
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Tight Yoke Installation
Source: by Randy's Ring & Pinion
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Tire Diameter/Circumference & Air Pressure Differences; "...You will recall that at the beginning of this section, we mentioned that we had made sure that all four tires on our truck were the same size, were worn the same amount, were inflated to the specified pressure and were subjected to reasonable loading. Avoiding driveline windup was the reason for this. Figure 18A shows that tires of even slightly different size roll different distances every revolution. Figure 18B shows that the same effect is true for tires that are the same size but inflated or loaded differently. Operating a 4 x 4 in 4WD with tires of different size or inflation will produce driveline windup, even when driving straight ahead! If the vehicle is being driven in 4WD on dry, hard pavement, the driver will notice drag and may experience the hop, skip, bounce effect as the front or rear wheels release the windup..." in Four Wheel Drive (4X4) General Information, Operation & Troubleshooting TSB 92-1-8 for Bronco, F Series & Ranger (COMPLETE); Includes Electric Shift On The Fly (ESOF) Troubleshooting & Hub Operation; see page 4-6 & Figures
Source: by Ford via Chilton
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Tire Speed Related Vibrations; "...As the axle shaft rotates, the U-joints actually speed up and slow down twice per revolution, this is not a constant velocity device. A U-joint which is failing can cause these speed fluctuations to be felt or heard by the driver of the vehicle. This type of vibration will typically be worse when turning corners. Most vehicles will not have the U-Joints rotating on solid front axles unless the hubs (if equipped) are locked..."
Source: by vibratesoftware
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Troubleshooting, Driveshaft; "...chock the wheels, put it in neutral, and grab the driveshaft and twist it back and forth. examine the u-joint area for any excessive movement..." Miesk5 note; Spicer says, "...To cancel an angle vibration, the universal joint operating angles need to be EQUAL within 1 degree at each end of a driveshaft..."
Source: by memphisrain at FSB
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Types & pics; "...1310 x 1330 Series centering yoke front CV shafts are mainly found on 1977-1979 F-series trucks and full size Broncos. These shafts feature a 1330 joint at the slip yoke and a 1310 series constant velocity joint. The centering yokes are greaseable on the shafts. Straight 1330 Series centering yoke front CV shafts were only used during the 1979 model year on some Bronco and F150 models and almost all F250 and F350 trucks. The centering yokes are greaseable on the shafts. 1330 x 1330SP Series greaseable centering yoke front CV shafts equipped some 1979 Broncos and all 1980-89 Broncos plus some 1979 F-150 trucks. These shafts have a 1330 CV , but the slip yoke uses a 1330SP joint. The centering yokes are greaseable on the shafts..."
Source: by QUAD 4 x4 quad4x4.com
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Types, Axle Length, Spline # Chart for 67-80 Bronco & F Series
Source: by sierrabronco.com
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U Joint Inspection; "...Bound-up outer axle u-joints can cause weird steering non-returnability, pulling, noises, etc. A suggested idea is to reach up and turn the drive axle 90 degrees at the outer u-joint, look for rust bleeding out of the u-joint caps, feel for looseness..."
Source: by miesk5 at Ford Bronco Zone Forums
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Universal Joint TSB 97-20-15 for 90-96
Source: by Ford via Steve83 (Steve, That dirty old truck) at SuperMotors.net
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Universal Joints Overview from 1996 F-150, 250, 350 (4x4), and Bronco Workshop Manual; "...The universal joints (U-joints) are lubricated for life except on motorhome chassis vehicles. Two types of universal joint kits are used on Ford light trucks: Dana design and Ford design. The designs are similar. The universal joints are equipped with a nylon thrust washer at the base of the bearing cup. This thrust washer controls end play, positions the needle bearings and improves grease movement. Parts are not interchangeable between Dana and Ford design universal joint kits.CAUTION: Universal joint components from different manufacturers or new and used universal joint kits should never be mixed. Universal joints are to be installed as complete assemblies only. All two- and three-piece driveshaft vehicles are equipped with driveshaft center bearing supports (4800) that are prelubricated and sealed for life. U-joints and driveshaft slip yokes (4841) equipped with grease fittings should be lubricated at the intervals specified in Section 00-03. U-joint bearings are retained on the U-joints spiders by snap rings and U-bolts or straps on some applications. Two different attaching systems are incorporated to attach the driveshaft (4602) to the drive axle. Depending on application, either a driveshaft flange yoke (4866) is bolted to the (circular) companion flange, or a universal joint is attached to the rear axle companion flange by means of U-bolts, or bolts with straps..." READ MORE
Source: by Ford via thedieselstop.com
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Vibrations, General; Improperly phased or twisted propshafts; "...A twisted or improperly manufactured propshaft can have U-joints which are out of phase. This causes improper U-joint acceleration and deceleration cancellation to take place. The result is a second order propshaft speed related vibration. To check U-joint phasing, perform the following steps.." read more & scroll through the sub-topics
Source: by vibratesoftware.com
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Yokes & Flanges; "...think they didnt switch to the flanges till the 92 model switch on the broncos so any bronco in the 87-91 style should have the yokes on a 1356; miesk5 NOTE, Bronco, 89-96 BW1356 Electric shift - rear circular flange & front fixed yoke; Manual shift - rear circular flange & front fixed yoke
Source: by broodu at FSB
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