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FORD BRONCO TRANSMISSION,
ADAPTERS & SHIFTER PARTS

C4 Automatic
These parts are just like the stock 73-77 Bronco parts no longer available from Ford. This kit consists of a new main shaft, tailhousing, bearing retainer, seal and hardware. The installation is easy since the cross-member bolts directly to the new tail section. Your 3-speed drive sleeve might need shortened to use with the new output shaft. No driveshaft modifications are necessary. An aftermarket shifter or C4 Auto shifter from a Mustang, Pinto or 73-77 Bronco will be needed.
#3510 C4 to Dana 20 Adapter Kit, $479.00
Ford C4 Automatic C4 to Dana 20 Adapter Kit
C6 Automatic
If you want the extra strength of a C6 trans, this is the adapter kit to use. The modifications are a bit more extensive than for the C4, but for heavy duty use this trans is a better choice. You must have a 4WD C6 trans with a 31 spline output shaft. The shaft will have to be shortened. If you have a 66-68 Bronco, you will have to replace the front driveshaft with the later style, #3811 and #3813 Companion Flange. If you have a 73-77 Bronco with the J-Pattern transfer case shifter, the mounting assembly and possibly the shift rails will have to be modified or replaced with our #2150 J-Pattern Transfer Case Shifter to reduce the modifications. You will also need an automatic shifter. This kit includes a new extension housing, a new 31 spline spud shaft, bearing retainer and necessary gaskets, seals and hardware. Note: Transfer case will be 2.5” farther back.
#3520 C6 Adapter, $599.00

88 & Up AOD
The 88 and newer Ford automatic overdrive transmission (AOD) has improved lubrication and is more capable of handling the V8. This trans is both larger and longer than the 3spd and will require the crossmember to be moved back approx. 1.5”, requiring driveline modification, a possible body lift or modification of the transmission tunnel braces. This kit consists of an output shaft, tail housing and a special spud shaft. Disassembly of the transmission is necessary for installation and it’s recommended that it be done by a trained technician.
#3514 '80 - '87 AOD to Dana 20, $558.75
#3515 88+ AOD to Dana 20, $558.75

NP435 & T18 4-speed
This setup will give a Bronco a super low 1st gear approximately double that of the stock 3-speed. The NP435 can be found in 67-83 F100-F350. The T18 can be found in 68-82 F100-F250. The trans you select must have a 28 spline output shaft. The new overall length of the NP435 and the adapter will directly replace the original V8 assembly, so no driveshaft modification is necessary. The T18 and adapter are approximately 1” longer than the original V8 assembly so driveshaft mods are necessary. This kit includes a machined aluminum adapter housing, gaskets and bolts. The gearshift handle will have to be rebent to come out under the dash. Mods to the floorboard will also be necessary.
#3555 NP435 & T18 to Dana 20 Adapter Kit, $440.00

Ford T/C 4-speed
The Ford Top Cover 4-speed, found in 66 and newer Fords, is the best 4-speed available for all-around driving. The way to spot this trans is by it’s 10 bolt top cover. The small block 4-speed from a 289/302 with a 2.78:1 1st gear is the best choice. This kit comes with a new main shaft splined to accept the stock sleeve in the transfer case, seals, gaskets and a special bushing to be installed in your stock V8 3-speed tail section, which requires minor modification. Crossmember doesn’t need to be relocated and the 3-speed clutch linkage can be kept. Our #2101 4-speed shifter is needed to complete the job.
#3550 4-speed to Dana 20 Adapter Kit, $269.00
#3558 Overdrive to Dana 20 Adapter Kit, $349.00
#3680 2F 5-Speed / Dana 20 Adapter Kit, $399.00

Ford Bronco 3-Speed Shifter

Duffy’s Original 3-Speed Shifter
Stock column shifters on Broncos have always been troublesome. The stock rods bend causing the neutral gate to go out of alignment making shifting difficult. Sometimes the release pin on the collar eggs out, letting you take the shifter with you! Our 3-speed floor shifters eliminate those problems and make shifting a joy again! Other shifters run your knuckles into the dash, so we shortened the throw 4” and added a 1” offset to the right for extra leg room. Included is the rubber boot, bezel, walnut knob, decal and white fiberglass tunnel cover with screws. Designed to fit a V8, but the rods may be shortened approx. 2.5” by cutting, overlapping and rewelding to fit the 6cyl. May be used with the stock transfer case shifter or match it with our transfer case shifters sold below.
#2201 73-77 3-Speed (for J-pattern Transfer Case), $329.95
#2202 66-72 3-Speed (for T-handle Transfer Case), $329.95

We now also offer this kit without a Tunnel Cover, as many have one already or want to do something custom.
#2201NT 73-77 3-Speed (J-pattern), No Tunnel Cover $279.95
#2202NT 66-72 3-Speed (T-handle), No Tunnel Cover $279.95

3-Speed Shifter Rebuild Kit
Bronco 3-Speed Shifter Rebuild Kit
This is for those of you that have had our shifter for years and now it needs a little freshening up. Since we’ve been making this kit for over 30 years (some of our shifters have several hundred thousand miles on them by now) we realize that some of the parts may be worn and need replaced. This kit comes with a new chrome handle, a walnut knob, boot & bezel, shift rods and rod bushings. The shift rods are threaded at both ends for the best possible fit and fine tuning. This kit can also be used to convert a worn out 3 speed Hurst linkage to one like ours. Handle is offset to the right to increase legroom and is shorter so your knuckles don’t hit the dash.
#2300J 3-Speed Shifter Rebuild Kit (J-Pattern), $110.00
#2300T 3-Speed Shifter Rebuild Kit, (T-Pattern), $110.00

Transfer Case Shifter
Bronco Transfer case shifter
A perfect match to our 3 or 4-Speed Shifter Kits. Eliminate the T handle jamming in your 66-72 Bronco. Includes chrome offset handle embossed with “Duff’s,” walnut knob, decal, boot and bezel.
#2102 T-Handle Transfer Case Shifter, 66-72 Bronco, $99.00
#2103 Replacement Tunnel Cover, $55.00
#2104 Replacement Boot, $14.50
#2105 Wood Knob -- SPECIFY PATTERN, $11.50 each

Twin Stick Shifter for T-Pattern Dana 20
Ford Bronco Twin Stick Shifter for T-pattern Dana 20Tired of fighting that stock shifter?  By separating the shift rails and using twin shifters this kit makes for easier trouble-free shifting. Designed to match our floor shifters with chrome handles and walnut knobs. Requires minor modification to the shift rails and floor board for installation. Includes Boot & cover panel.  Works with stock 3 speed.
#2122  T-Pattern Twin Stick, $219.00

Bronco Twin Stick Shifter For J-Pattern Dana 20 T-Case

Twin Stick Shifter for J-Pattern
Dana 20 Transfer Case
Tired of fighting that stock J-shifter? By separating the shift rails and using twin shifters this kit makes for easier trouble-free shifting. An added bonus is a variety of gear options allowing you to better utilize the Dana 20, controlling the power to the front and rear separately. Requires minor modification to the shift rails and floorboard for installation. Includes chrome shift handles embossed with the Duff name, wood knobs with domed decals to match our 3 and 4-speed floor shifters, boot & cover panel.
#2152 J-Pattern Twin Stick, 1973-77 Bronco, $199.00


Bronco J Pattern Transfer Case Shifter “J” Pattern Transfer Case Shifter
This J pattern shifter is a brand new unit with a revolutionary design. Our design is spring loaded for smooth shifting and includes brass oilite bushings which never need lubed, thus providing long life and trouble free operation for years to come. Easy to install—simply remove the old shifter and replace it with a complete new unit using the original bolt holes. Includes chrome handle, new bolts, walnut knob, decal, boot and bezel to match our other shifters.
#2150 J Pattern Shifter 73-77 Bronco, $199.95


Billet Shifter Knobs

Ford Brushed Billet J Pattern Shifter Knobs
#2161
Ford Brushed Billet Twin Stick Shifter Knobs
#2162 Twin Stick Patterened Knobs

Take your shifters to the next level with one of these Brushed Billet
aluminum shifter knobs. CNC’d with the transfer case shifter pattern.
Threaded 3/8”-16 to fit Duff and Hurst shifter handles. Can be easily
drilled and tapped to fit others. Includes jam nut.
#2161-J J Pattern Knob, $35.00
#2162 Twin Stick Patterned Knobs, $35.00

Ford Brushed Billet J Pattern Shifter KnobsFord Brushed Billet J Pattern Shifter Knobs
#2161-3
Ford Brushed Billet J Pattern Shifter Knobs
#2161-NP
Ford Brushed Billet J Pattern Shifter Knobs
#2161-T
Take your floor shifter to the next level with one of these Brushed Billet aluminum
shifter knobs. CNC’d with the 3-speed floor shifter pattern. Also available in matching
transfer case patterns (see opposite). Threaded 3/8”-16 to fit Duff and Hurst.

#2161-3 3-Speed, $35.00
#2161-NP435, $35.00

#2161-T T-Pattern Knobs, $35.00

 


Ford Bronco II and Ranger Catalog

James Duff - The Early Ford Bronco, Bronco II & Ford Ranger Parts and Accessories Specialist
6609 Bronco Dr., Knoxville, TN 37921
Phone: 1-865-938-6696
7am-3pm M-F West Coast
10am-6pm M-F East Coast

Fax: 1-865-938-6746
24 Hours

Ford Classic Bronco

BRONCO II & RANGER
ONLINE CATALOG

CLASSIC BRONCO
ONLINE CATALOG

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