What engines were available on the 1990 Ford Bronco?

Three engines: 4.9L EFI (300) I-6, 5.0L EFI (302) V-8, and 5.8L EFI (351) V-8, paired with a 5-speed manual O/D, automatic O/D, or electronic 4-speed automatic depending on engine.

What axle ratios were offered on the 1990 Bronco?

3.08, 3.55, and 4.10 ratios in regular and limited-slip versions, with axle codes X18 (3.08), X19 (3.55), XH8 (3.08 LS), XH9 (3.55 LS), and XH5 (4.10 LS).

Was the 3.08 axle available with all setups?

No. The 3.08 (X18/XH8) was only standard/optional with the 4.9L I-6 5-speed manual in 49 states, and a footnote says it was not available for performance-intensive applications or with 31 x 10.50R tires.

What do option codes 952 and 954 mean on a 1990 Bronco?

952 is the Deluxe Two-Tone paint option and 954 is the Victoria Two-Tone paint option, as shown in the two-tone paint illustrations.

What note applies to the 5.8L EFI (351) V-8 with the electronic 4-speed automatic (44E)?

Footnote (1) states it was available as an upgrade with Eddie Bauer.

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1990 Ford Bronco Engine/Transmission/Axle Availability Chart & Axle Codes

1990 Ford Bronco engine/transmission/axle availability chart with axle ratio and option codes

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Reference · 1987-1991 BroncoAll 66 data & spec plates

'90 Bronco Ford certification label dated 10/89 with GVWR 6050LB, P235/75R15XL tire specs and VIN

Air/Fuel Ratio Limits Chart - AFR for Best Power, Torque & Economy

Ford calibration label reading 0-64E-R00 and F0AE-6E061-EAZ

1990 Ford Bronco Engine/Transmission/Axle Availability Chart & Axle Codes

1990 Ford Bronco 4x4 Eddie Bauer window sticker with 5.8L EFI V8, 4-speed auto and 11/15 MPG

Ford window sticker with Eddie Bauer Package 686, 5.8L EFI V8, electronic 4-speed auto and $22,545.00 total

Ford AOD StreetFighter Transmission Line Pressure Chart - Min/Max by Gear

Ford E4OD Transmission Cooler Line Check Valve Fitting - FOTZ-7D174-B / -C

Welder Input Data Plate - Serial JH229505, Stock 901782, 200/230/460V Specs

1989 Ford Bronco Calibration Sticker 9-64E-R11 / E9AE-6E061-CCT Label

1989 Ford Bronco Door Data Plate - VIN, GVWR, GAWR & Tire Spec Label (10/88)

1987 Ford Bronco Safety Compliance / VIN Data Plate - GVWR, Tire & Axle Codes

66data & spec plates1987-1991 Ford Bronco More reference

1973-1974 Ford Point-Type Ignition System Circuit Diagram - Coil & Distributor

Wiring diagram

Ford Thermactor Air Bypass Valve Cutaway Diagram - Port Identification

Schematic

Ford Canister Purge Regulator Valve (CANP 9C915) Test Procedure - Figure 11

Service procedure

Ford 5.0L V8 PCV Valve & Hose Routing Diagram - 9A474, 6B890, 6A664

Exploded parts

Ford 5.0L/5.8L Air Throttle Body Assembly Diagram - Canister Purge Ports & TPS

Manual page

1990 Bronco Major Standard Equipment sheet with interior features and functional specs by trim

Brochure

Borgeson Steering Intermediate Shaft Measurement Diagram - U-Joint Length B & C

Blueprint

Ford Thermactor Combination Valve Diagram - Air Bypass/Control Ports Labeled

Vacuum routing

1990 Ford Bronco Fuse Panel Diagram: Fuse Positions, Amps & Circuits (11-2)

Fuse chart

Ford V8 Intake Manifold Bolt Tightening Sequence Diagram - Stud Locations

Torque spec

1990 Ford Bronco order-guide chart (8-14-89): engine/transmission/axle availability across 49-state, California and high-altitude, with axle ratios 3.08/3.55/4.10, two-tone paint illustrations and HP/torque table.

Part of 1987-1991 Ford Bronco Data & Spec Plates

AI caption January 2011 · Photo 342 of 1787

This is Page 5 of a Ford dealer/order-guide-style reference sheet dated 8-14-89 for the 1990 Model Bronco. The main table is an Engine/Transmission/Axle Availability Chart listing three engines, 4.9L EFI (300) I-6, 5.0L EFI (302) V-8, and 5.8L EFI (351) V-8: with their transmission pairings (5-speed manual O/D, automatic O/D, electronic 4-speed automatic) and engine/transmission codes (99Y, 99N, 99H; 44M, 44E, 44T). It shows standard/optional availability of axle ratios 3.08, 3.55 and 4.10 in regular and limited-slip forms (axle codes X18, X19, XH8, XH9, XH5) for 49-state, California, and high-altitude configurations. Footnotes note the 5.8L/44E combination is available as an upgrade with Eddie Bauer, the 3.08 axle is not available for performance-intensive applications or with 31x10.50R tires, and the manual has a 3.90 first gear. A Fuel Economy section and an Engine Horsepower and Torque Ratings section are laid out but the numeric values were not printed (blank columns). The page ends with Two-Tone Paint Illustrations: Deluxe Two-Tone (option code 952) and Victoria Two-Tone (option code 954), with a body color/accent color legend.

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Frequently asked questions

What engines were available on the 1990 Ford Bronco?: Three engines: 4.9L EFI (300) I-6, 5.0L EFI (302) V-8, and 5.8L EFI (351) V-8, paired with a 5-speed manual O/D, automatic O/D, or electronic 4-speed automatic depending on engine.
What axle ratios were offered on the 1990 Bronco?: 3.08, 3.55, and 4.10 ratios in regular and limited-slip versions, with axle codes X18 (3.08), X19 (3.55), XH8 (3.08 LS), XH9 (3.55 LS), and XH5 (4.10 LS).
Was the 3.08 axle available with all setups?: No. The 3.08 (X18/XH8) was only standard/optional with the 4.9L I-6 5-speed manual in 49 states, and a footnote says it was not available for performance-intensive applications or with 31 x 10.50R tires.
What do option codes 952 and 954 mean on a 1990 Bronco?: 952 is the Deluxe Two-Tone paint option and 954 is the Victoria Two-Tone paint option, as shown in the two-tone paint illustrations.
What note applies to the 5.8L EFI (351) V-8 with the electronic 4-speed automatic (44E)?: Footnote (1) states it was available as an upgrade with Eddie Bauer.