Chrome Moly 4340 Heavy Duty Front Axles -  Stop Breaking Axles on the Trail!

Front axles 4340 Chrome-Moly provide up to 50% increased strength over stock axles for use in extreme performance applications with large  tires and high horsepower. We offer both single axle replacements, ujoints and complete front axle kits for Dana 30, Dana 44, Dana 60 and GM 8.5" differential. Jeep Front axles, Ford front axles and GMC and Chevrolet axles.

These axles are manufactured for us by Yukon, using the latest technologies and the highest quality materials to ensure high strength and long life. Limited Lifetime warranty covers manufacturing defects and axle breakage for as long as you own the vehicle.

For extreme high performance use—where twisting torque is important, but bending stresses are limited—4140 or 4340 Chrome-Moly alloy steels work well. 4140 Chrome-Moly provides approximately 27 percent more strength than 1040 steel, while 4340 Chrome-Moly provides approximately 39 percent more strength than 1040. This translates into huge gains in twisting strength, assuming bending will not be an issue. 4340 is approximately 10 percent stronger than 4140 due to the extra nickel content, which increases toughness
and strength.

Hardness

Hardness is an important material property that affects material strength. Hardness is related to a material’s resistance to deformation or penetration. A well-made axle shaft with the right alloy and the proper hardness is less likely to wear, bend, twist, break, or deteriorate as a result of the pressures and forces it supports.Achieving the desired level of hardness in an axle shaft is done by controlling several processes. Selecting the right material, and using the proper processes for tempering, normalizing, and heat-treating are all necessary in order to produce a strong axle shaft. Most automotive axle shafts are case-hardened. Case-hardening leaves a hard surface layer (approximately 0.100” to 0.400” deep) and a relatively soft, strong, tough core. Through-hardening can increase strength, but it can also lead to problems if the shaft is used to support the weight of the vehicle. Through-hardening produces a shaft which is usually too brittle to support the side loads the flange incurs while supporting the vehicle. Case-hardening causes less distortion and cracking than through-hardening, especially in large cross sectional areas.

Quality

There are many intricate and scientifically proven processes involved to produce a quality Yukon axle shaft. The short list includes: choosing the right steel, upset forging the flange end,
normalization of the material, rough turning into the approximate shape of the shaft, final smooth turning, cutting or rolling the ines, drilling the stud holes, turning the C-clip groove, hardening the shaft, magnaflux inspection for cracks, finishing/grinding the bearing and seal surfaces, and finish machining the flange. We take great pride in doing each step right—and ensuring you the highest quality axle.

Axle Spines

Axle spines can be cut or rolled into the shaft. Both methods are certainly strong, and each comes with its own advantages. Rolled splines can produce a better grain structure in the material for extended durability, while cutting the splines allows the shaft hardness to be consistently thick—right up to the ends of the splines. Both ine forming methods hold up well for axle shafts, and both can be a good way to go. Yukon axle shafts are made with both methods, depending on the specific application requirements for accuracy, strength, and durability.

This warranty is not transferable to another party. “No Questions Asked” replacement for first warranty return, however we reserves the right to either replace axle or refund original purchase price after the first warranty claim.

Individual Axles and Ujoints
Part Number	Vehicle Mfg.	Model	Length	Type	Spline Count Count	Description	Your Cost Axle		Use U-Joint Part Number	Your Cost U-Joint
YA W38806	Ford	D30	18.44	Inner	27	Bronco 67-71 Inner LH Axle	$135.95
YA W38807	Ford	D30	28.06	Inner	27	Bronco 67-71 Inner RH Axle	$135.95
YA W38821	Jeep	D30	16.63	Inner	27	XJ 84-90, TJ 97 & UP, Wrangler 87 & Up LH Inner Axle	$113.95
YA W38103	Jeep	D30	N/A	Spindle	N/A	79-’86 Jeep CJ Front Spindles For HD Axles, w/Disc Brakes	$142.95
YA W38789	Jeep	D30	27.01	Inner	27	CJ Jeep 72-81 Inner LH Axle	$135.95
YA W38803	Jeep	D30	14.14	Inner	27	CJ Jeep 72-81 Inner LH Axle	$135.95
YA W38804	Jeep	D30	28.69	Inner	27	CJ Jeep 82-86 Inner LH Axle	$135.95
YA W38805	Jeep	D30	15.82	Inner	27	CJ Jeep 82-86 Inner RH Axle	$135.95
YA W39125	Jeep	D30	6.11	Outer	27	Jeep Wrangler 95 and newer	$113.95
YA W38098	Jeep	D30	8.31	Outer	27	Wrangler 87-94 Outer Stub Axle	$168.95
YA W37774	Jeep	D30	8.31	Outer	27	Wrangler 95 & Up Outer Stub Axle	$140.95
YA W38875	Jeep	D30	32.25	Inner	27	XJ 84-90, TJ 97 & UP, Wrangler 87 & Up RH Inner Axle	$199.95
YA W39147		D30	N/A	Plate	N/A	D30 Disconnect Block Off Plate	$41.95
YA W39147 Kit		D30	N/A	Plate		Dana 30 Disconnect Block-off Kit (includes seals and plate).	$46.95
YA W39105	Jeep	D30 & D44	8.72	Outer	27	CJ & Scout Outer Front Stub Axle	$113.95
YA W38248	Jeep	D30 & D44	8.72	Outer	30	CJ & Scout Outer Front Stub Axle	$113.95
YA W38105	Jeep	D44	N/A	Spindle	N/A	74-’82 Scout Front Spindles For HD Axles, w/Disc Brakes	$143.95
YA W38817	Ford	D44	10.6	Outer	27	77-78 F250 Outer Front	$113.95
YA W39143	Ford	D44	18.91	Inner	30	Bronco & F150 Inner LH Axle	$138.95
YA W39144	Ford	D44	33.91	Inner	30	Bronco & F150 Inner RH Axle	$185.95
YA W38810	Ford	D44	27.94	Inner	30	Bronco 71-77 Inner RH Axle	$199.95
YA W38816	Ford	D44	9.72	Outer	19	Bronco, F150, Wagoneer Drum Outer Front	$113.95
YA W38809	GM	D44	18.31	Inner	30	GM 69-80, Bronco 71-77 Inner LH Axle Shaft	$135.95
YA W39529	GM	D44	36.13	Inner	30	GM Truck & Blazer 69-80 Inner RH Axle	$239.63
YA W38790	Jeep	D44	32.91	Inner	30	SCOUT 71-80 Inner LH Axle	$239.63
YA W39339	Jeep	D44	33.19	Inner	30	Wagoneer 74-79 Inner LH Axle	$185.95
YA W39461	Jeep	D44	32.12	Inner	30	Wagoneer 80-92 Inner LH Axle	$191.95
YA W39459	Jeep	D44	15.8	Inner	30	Wagoneer 80-92 Inner RH Axle	$113.95
YA W38808	Scout	D44	14.78	Inner	30	Scout & Wagoneer Inner RH Axle	$135.95
YA W38815	GM	D44 & 8.5	9.94	Outer	19	GM Truck & Blazer, Wagoneer Disk Outer Front	$113.82
YA W48214	Dodge	D60	36.97	Inner	35	Dodge Inner	$239.95		YP SJ733X-731	$325.95
YA W48216	Ford	D60	34.56	Inner	35	78-79 F350 Sno Fighter Inner Axle	$239.95		YP SJ733X-731	$325.95
YA W48208	GM	D60	17.67	Inner	35	GM Inner Axle	$229.95		YP SJ733X-731	$325.95
YA W48210	GM	D60	35.1	Inner	35	GM Inner Axle 1ton 1979-1990, Dana 60 1980-1986	$229.95		YP SJ733X-731	$325.95
YA W46105	GM	D60	12	Outer	30	GM Outer Stub Axle Shaft	$139.95		YP SJ733X-731	$325.95
YA W46101	Ford	D60 & D70	11.4	Outer	35	FORD 77 & Up Outer Stub Axle Shaft	$139.95		YP SJ733X-731	$325.95
YA W46100	GM	D60 & D70	12	Outer	35	GM Outer Stub Axle Shaft	$139.95		YP SJ733X-731	$325.95
YA W39253	GM	GM 8.5	35.46	Inner	28	GM Truck & Blazer 79 & 87 Inner LH Axle	$113.95
YA W39255	GM	GM 8.5	35.50	Inner	30	GM Truck & Blazer 79 & UP Inner LH Axle	$113.95
YA W39252	GM	GM 8.5	19.15	Inner	28	GM Truck & Blazer 79 & UP Inner RH Axle	$113.95
YA W39254	GM	GM 8.5	19.15	Inner	30	GM Truck & Blazer 79 & UP Inner RH Axle	$113.95
Front Axle Kits with HD Ujoints
YA W24106	Jeep	D30			27	4340 Front Axle Kit, w/ 297X, 72-81 CJ Jeep	$439.95		YP SJ297X-201	In Kit
YA W24114	Jeep	D30			27	4340 Front Axle Kit, w/ 297X, 82-86 CJ Jeep	$755.95		YP SJ297X-201	In Kit
YA W24110	Jeep	D30			27	4340 Front Axle Kit, w/ 297X, 84-90 XJ, 97&UP TJ, 87&UP Wrangler	$735.95		YP SJ297X-201	In Kit
YA W24108	Jeep	D30			27	4340 Front Axle Kit, w/ Super-Joint, 72-81 CJ Jeep	$822.95		YP SJ297X-201	In Kit
YA W24116	Jeep	D30			27	4340 Front Axle Kit, w/ Super-Joint, 82-86 CJ Jeep	$1145.95		YP SJ297X-201	In Kit
YA W24112	Jeep	D30			27	4340 Front Axle Kit, w/ Super-Joint, 84-90 XJ, 97&UP TJ, 87&UP Wrangler	$1099.95		YP SJ297X-201	In Kit
YA W39147-KIT		D30				Disconnect Block Off Plate & Seal Kit	$46.95		YP SJ297X-201	In Kit
YA W24134	Ford	D44			19/30	4340 Front Axle Kit w/ 297X, Bronco & F150	$742.95		YP SJ297X-201	In Kit
YA W24136	Ford	D44			19/30	4340 Front Axle Kit w/ Super-Joint, Bronco & F150	1125.95		YP SJ297X-201	In Kit
YA W24130	Ford	D44			19/30	4340 Front Axle Kit, w/ 297X, 71-77 Bronco	$631.95		YP SJ297X-201	In Kit
YA W24132	Ford	D44			19/30	4340 Front Axle Kit, w/ Super-Joint, 71-77 Bronco	$936.95		YP SJ297X-201	In Kit
YA W24150	GM	D44			19/30	4340 Front Axle Kit w/ 297X, 69-80 GM TRK & BLAZER	$699.96		YP SJ297X-201	In Kit
YA W24152	GM	D44			19/30	4340 Front Axle Kit w/ Super-Joint, 69-80 GM TRK & BLAZER	$990.95		YP SJ297X-201	In Kit
YA W24146	Jeep	D44			19/30	4340 Front Axle Kit w/ 297X, 74-79 Wagoneer, Disc Brake	$625.96		YP SJ297X-201	In Kit
YA W24142	Jeep	D44			19/30	4340 Front Axle Kit w/ 297X, 74-79 Wagoneer, Drum Brake	$625.96		YP SJ297X-201	In Kit
YA W24138	Jeep	D44			19/30	4340 Front Axle Kit w/ 297X, 80-84 Wagoneer	$555.95		YP SJ297X-201	In Kit
YA W24148	Jeep	D44			19/30	4340 Front Axle Kit w/ Super-Joint, 74-79 Wagoneer, Disc Brake	$990.95		YP SJ297X-201	In Kit
YA W24144	Jeep	D44			19/30	4340 Front Axle Kit w/ Super-Joint, 74-79 Wagoneer, Drum Brake	$990.95		YP SJ297X-201	In Kit
YA W24140	Jeep	D44			19/30	4340 Front Axle Kit w/ Super-Joint, 80-84 Wagoneer	$957.95		YP SJ297X-201	In Kit
YA W24154	Jeep	D44			27/30	4340 Front Axle Kit, w/ 297X, TJ RUBICON 2003 and later	$649.95		YP SJ297X-201	In Kit
YA W24156	Jeep	D44			27/30	4340 Front Axle Kit, w/ Super-Joint, TJ RUBICON  2003 and later	$935.95		YP SJ297X-201	In Kit
YA W24126	Scout	D44			27/30	4340 Front Axle Kit, w/ 297X, 71-80 Scout	$772.95		YP SJ297X-201	In Kit
YA W24128	Scout	D44			27/30	4340 Front Axle Kit, w/ Super-Joint, 71-80 Scout	$1167.95		YP SJ297X-201	In Kit
YA W26022	Dodge	D60			30/35	79-93 Dodge 4340 Front Axle Kit w/ 733X	$936.95		YP SJ733X-731	In Kit
YA W26024	Dodge	D60			30/35	79-93 Dodge 4340 Front Axle Kit w/ Super-Joint	$1,281.95		YP SJ733X-731	In Kit
YA W26026	Dodge	D60			35	79-93 Dodge 4340 Front Axle Kit w/ 733X	$936.95		YP SJ733X-731	In Kit
YA W26028	Dodge	D60			35	79-93 Dodge l 4340 Front Axle Kit w/ Super-Joint	$1,281.95		YP SJ733X-731	In Kit
YA W26010	Ford	D60			35	78-79 Ford SNO FIGHTER 4340 Front Axle Kit	$936.95		YP SJ733X-731	In Kit
YA W26012	Ford	D60			35	78-79 Ford SNO FIGHTER 4340 Front Axle Kit w/ Super-Joint	$1,271.95		YP SJ733X-731	In Kit
YA W26014	Ford	D60			35	85-88 Ford 4340 Front Axle Kit w/ 733X	$936.95		YP SJ733X-731	In Kit
YA W26016	Ford	D60			35	85-88 Ford 4340 Front Axle Kit w/ Super-Joint	$1,271.95		YP SJ733X-731	In Kit
YA W26018	Ford	D60			35	88-98 Ford 4340 Front Axle Kit w/ 733X	$936.95		YP SJ733X-731	In Kit
YA W26020	Ford	D60			35	88-98 Ford 4340 Front Axle Kit w/ Super-Joint	$1,271.95		YP SJ733X-731	In Kit
YA W26006	GM	D60			30/35	77-91 GM 4340 Front Axle Kit w/ 733X	$936.95		YP SJ733X-731	In Kit
YA W26008	GM	D60			30/35	77-91 GM 4340 Front Axle Kit w/ Super-Joint	$1,271.95		YP SJ733X-731	In Kit
YA W26002	GM	D60			35	77-91 GM 4340 Front Axle Kit w/ 733X	$931.96		YP SJ733X-731	In Kit
YA W26004	GM	D60			35	77-91 GM 4340 Front Axle Kit w/ Super-Joint YP SJ733X-731	$1,271.95		YP SJ733X-731	In Kit
YA W24118	GM	GM 8.5			28	4340 Front Axle Kit, w/ 297X, 79-87 1/2 Ton TRK & Blazer	$466.95		YP SJ297X-201	In Kit
YA W24122	GM	GM 8.5			30	4340 Front Axle Kit, w/ 297X, 79&UP 1/2 Ton Trk & Blazer	$649.95		YP SJ297X-201	In Kit
YA W24124	GM	GM 8.5			30	4340 Front Axle Kit, w/ Super-Joint, 79 & Up 1/2TON TRK & Blazer	$1014.95		YP SJ297X-201	In Kit
YA W24120	GM	GM 8.5			28	4340 Front Axle Kit, w/ Super-Joint, 79-87 1/2 Ton TRK & Blazer	$861.95		YP SJ297X-201	In Kit
YA TNOBIRF-A		Toyota 8			30	Kit Only Complete w/Spindles & U-Joints	$567.95		YP SJ297X-201	$In Kit

Ground Freight charges will be added.