B.C. Broncos - 66-77 Early Bronco Drivetrain Adapters

110 Business Drive
PO BOX 69
Ingram, TX 78025

Tec line: (830) 367-1300
Order line: (888) 304-2945
Fax: (830) 367-1304

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DRIVE TRAIN TRANSFER CASE ADAPTERS

ZF TRANSMISSION TO D20 ADAPTER KIT

The Ford ZF transmission is the best manual transmission available for your Early Bronco. This is a state of the art five speed transmission that shifts smoothly and has an excellent low gear 5.71:1 as well as overdrive .72:1. ZF transmissions will bolt right to your 302/5.0L or 351 Windsor/5.8L. BC Broncos has developed a complete install kit to bolt the ZF to your Dana 20 complete with cross member, hydraulic master and slave cylinder stainless steel flex line and clutch rod. You must use a ZF transmission from a 1988-1999 Ford 4X4 pickup with a small block engine (302/5.0 or 351/5.8). Your stock EB flywheel and clutch will work with the ZF too. The ZF installation does not require a body lift, only a 6" X 7" hole in the tunnel cover.

Advance Adapter Our Ford ZF 5 speed adapter to the Bronco Dana 20 is 1.40” in length. The adapter material is 356 T-6 heat treated aluminum alloy. The adapter kit includes a adapter plate, special spud shaft with 31 internal spline, shifter linkage bracket, transfer case pivot bolt, bearing retainer, sealed bearing snap ring, gaskets, o-ring, fastening hardware and adapter instructions.

Transfer Case The adapter assembly will fit any 1966-77 Bronco Dana 20 transfer case. This adapter will only work with the “T” style shifter. Transfer cases with a “J” style linkage will require modifications to retain this linkage. This cast iron, gear driven case has a low range of 2.46:1 and a front output shaft on the driver’s side.

Transmission The kit is designed for exclusive use with the Ford ZF 5 speed manual transmission ( ZF S542 & S547). This heavy duty 5 speed is all aluminum with an integral bellhousing to the case. It can be easily identified by it’s diamond-shape casting ribs and a small 4-bolt top cover. The S542 was used in Ford trucks 1987-94 and the S547 1995 to 1999.

Here is the ZF shifter down

Here is the ZF shifter up with more than enough room near the dash.

made in USA logo

Adapter only

Install kit

Shopping Cart	Part Number	PART	Price
	21-11100	ZF TO D20 ADAPTER COMPLETE KIT	$699.99
	21-11200	ZF TO D20 ADAPTER	$379.99
	21-11300	CROSS MEMBER	$109.99
	21-24010	HYDRAULIC CLUTCH KIT	$209.99
	21-21100	CLUTCH MASTER CYLINDER	$75.99
	21-22000	CLUTCH SLAVE CYLINDER	$75.99
	21-24000	STAINLESS STEEL CLUTCH LINE	$49.99
	21-23000	CULTCH ROD	$23

700R4 TO D20 TRANSFER CASE ADAPTER KIT

Advance Adapter Our GM 700R-4 adapter to the Bronco Dana 20 is 2.50” in length. The adapter material is 356 T-6 heat treated aluminum alloy and has provision for our heavy duty transmission mount. The adapter kit includes two adapter housing, new 700R-4 output shaft, spud shaft, shifter linkage bracket, bearing retainer, bearing, snap ring, o-ring, gasket, seal, fastening hardware, and adapter instructions.

Transmission This kit is designed for exclusive use with the 4wd 700R-4 / 4L60 / 4L60E manufactured thru 1996. The overall case length of the transmission is 23.375”, has a non-removable bell housing, and a 4 bolt square rear case. Late model 4L60E automatics will have a removable bell housing and a 6 bolt hex pattern rear case. The late model automatic will require an additional Advance Adapter to work with this kit.

Options 716073 VSS kit. Required for early model 4L60E with a non-removable bell housing and a 4 bolt square case.

Shopping Cart

Part Number

PART

Price

22-17010

700R4 TO D20

$459.99

AOD TO D20 TRANSFER CASE ADAPTER KIT

Advance Adapter Our Ford AOD adapter to the Bronco Dana 20 is 6.00” in length. The adapter material is 356 T-6 heat treated aluminum alloy, and the adapter has a provision to retain the original early Bronco mount. The adapter kit includes an adapter housing, new AOD output shaft, spud shaft, retainer, bearing, snap ring, gasket, seal, o-ring, fastening hardware and adapter instructions.

Transfer Case The adapter assembly will fit any 1966-77 Bronco Dana 20 transfer case. T-style transfer case shifter linkage is required.

1983-87 Transmission This adapter kit is designed for exclusive use with the first generation Ford AOD automatic transmission. This 4 speed, overdrive transmission was first introduced during the 1983-87 model years. It is very important that the new main shaft furnished is compared to the original main shaft being replaced. In 1988, Ford changed the oiling system of the AOD that required a different output shaft.

1988-91Transmission This adapter kit is designed for exclusive use with the second generation Ford AOD automatic transmission. This 4 speed, overdrive transmission was introduced during the 1988-91 model years. It is very important that the new main shaft furnished is compared to the original main shaft being replaced.

1983-87

1988-91

Shopping Cart

Part Number

PART

Price

22-17021

AOD TO D20 ADAPTER EARLY ( 80-87 )

$499.99

22-17022

AOD TO D20 ADAPTER LATE ( 88-UP )

$499.99

C-6 TO D20 TRANSFER CASE ADAPTER KIT

Advance Adapter The Ford C6 adapter to the Bronco Dana 20 is 8.00” in length. The adapter material is 356 T-6 heat treated aluminum alloy, and the adapter has a provision to retain the original early Bronco mount. The adapter kit includes an adapter housing, spud shaft, crossmember sleeve, alignment retainer, snap ring, gaskets, o-ring, fastening hardware and adapter instructions.

Transmission This adapter assembly is designed for exclusive use with the Ford C6 automatic transmission 4wd. The 4wd output shaft must stickout 7” beyond the transmission case. The C6 is a 3 speed, heavy duty automatic with a case length of 20”, a non-removable bell housing and a oil pan that is held on with 17 bolts.

Shopping Cart

Part Number

PART

Price

22-17040

C-6 TO D20 ADAPTER

$549.99

C-4 TO D20 TRANSFER CASE ADAPTER KIT

Advance Adapter Our Ford C4 adapter to the Bronco Dana 20 is 7.375 in length. The adapter material is 356 T-6 heat treated aluminum alloy, and the adapter has a provision to retain the original early Bronco mount. The adapter kit includes an adapter housing, new C4 output shaft, alignment retainer, snap ring, gaskets, seal, o-ring, vent, fastening hardware and adapter instructions.

Transfer Case The adapter assembly will fit any 1966-77 Bronco Dana 20 transfer case. This cast iron, gear driven case has a low range of 2.46:1 and a front output shaft on the driver’s side.

Transmission The kit is designed for exclusive use with the Ford C4 automatic transmission. The Ford C4 is a 3 speed transmission was used between 1963-’82. The transmission bellhousing is

Removable, the overall length measures 17.00”.

Shopping Cart

Part Number

PART

Price

22-17030

C4 TO D20 ADAPTER

$410.99

NP 435 TO DANA 20 ADAPTER PLATE

The NP435 transmission is a popular swap for Early Broncos, revered for its reliability and great low gear. This precision machined adapter kit allows mating the NP435 to the Early Bronco Dana 20 transfer case, making the swap clean and easy. Note: This adapter requires an intermediate adapter (housing and shaft) from a 6 cylinder Bronco. You must provide this. BC Broncos sometimes has these on hand--call for pricing and availability.

Shopping Cart

Part Number

PART

Price

22-17041

435 ADAPTER

$249.99

22-17042

6 CYL HOUSING

$149.99

NP 435 / T18 TO DANA 20 ADAPTER

The NP435 transmission is a popular swap for Early Broncos, revered for its reliability and great low gear. This adapter kit allows mating the NP435 to the Early Bronco Dana 20 transfer case, making the swap clean and easy. This adapter DOES NOT require an intermediate housing and shaft from a 6 cylinder Bronco. With this kit they cast the housing and the adapter as one piece so you do not need any used parts.

Advance Adapter The Ford NP435 & T18 adapter the Bronco Dana 20 is 7.50” in length. The adapter material is 356 T-6 heat treated aluminum alloy, and the adapter has a provision to retain the original early Bronco mount. The adapter kit includes an adapter housing, alignment retainer, snap ring, gaskets, seal, o-ring, fastening hardware and adapter instructions.

Transmission The kit is designed for exclusive use with the Ford NP435 & T18 4 speed transmissions, 2wd version with a 28 spline output shaft. The NP435 cast iron case length is 10.875” and has a aluminum top cover. It was used in Ford trucks from 1964-85. When using our adapter kit with the NP435 & replacing a 3 speed manual in a V8 early Bronco application, the transmission conversion will not require any driveline modifications.

The Ford T18 cast iron case length is 11.875” and has a cast iron top cover. It was used in Ford trucks from 1967-84. The T18 is 1” longer than the NP435, requiring new drive shafts.

Shopping Cart

Part Number

PART

Price

22-17040

435 ADAPTER

$399.99

NV 3550

Advance Adapter This adapter kit will allow you to adapt the Jeep NV3550 5 speed manual transmission to the Bronco Dana 20 transfer case. The adapter is 1.40” in length and is made from strong 356 T-6 heat treated aluminum alloy. The adapter kit includes an adapter spacer, spud shaft, shifter bracket spacers, transfer case shifter linkage bracket for T-style shifter, pivot bolt, bearing retainer, bearing, snap ring, gaskets, seal, o-ring, fastening hardware and adapter instructions.

Note: This adapter assembly and transfer case shifter bracket only works with the Bronco Dana 20 transfer cases with the “T” style shifter!!!

Transfer Case The adapter assembly will fit the 1966-77 Bronco Dana 20 transfer case. This cast iron, gear driven case and has a decent low range Similar to the Jeep version except that the front output shaft on the driver’s side.

1966-72 Bronco Dana 20 featured a 2.46:1 low range and a “T” style shifter.

1973-77 Bronco Dana 20 featured a 2.38:1 low range and a “J” style shifter.

Transmission The NV3550 is the newest 5 speed transmission from Jeep and found in the 2000-2005 4.0L Wrangler TJ and Liberty. Similar to the AX15, the overall length of the NV3550 is 24.00”, has a removable bell housing. The differences are&nnull

The shifter comes out just off to the side of where the stock 4X4 shifter goes.

Adapter only

Install kit

Shopping Cart	Part Number	PART	Price
	21-17050	NV 3550 ADAPTER ONLY	$735.99
	22-17	NV 3550CROSSMEMBER KIT	$169.99
	21-17051	COMPLETE INSTALL KIT WITH TRANSMISSION	$2099

NV 4500

Advance Adapter The Dodge NV4500 adapter to the Bronco Dana 20 is 1.00” in length. And the overall length of this transmission and adapter is 19.50”. Adapter material is 356 T6 heat treated aluminum alloy. The adapter kit includes a Bronco Dana 20 adapter plate, spud shaft with 23 internal spline, t-case shifter bracket, bearing retainer, bearing, snap ring, gaskets, seal, o-ring, fastening hardware, and adapter instructions.

Transfer Case The adapter assembly will fit any 1966-77 Bronco Dana 20 transfer case. This adapter will only work with the “T” style shifter.

Transmission The adapter kit is designed for exclusive use with the Dodge 4WD NV4500 transmission with a 23 spline output shaft.

High gear Low gear

Adapter only

Install kit

Shopping Cart	Part Number	PART	Price
	22-17060	NV 4500 ADAPTER KIT ONLY (23 SPLINE)	$689.99
	22-17	NV 4500 ADAPTER KIT ONLY (29 SPLINE)	$689.99
	22-17	NV 4500 CROSSMEMBER KIT	$99.99

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