TK42105 Chromoly Left Inner Axle Shaft for 1970-1981 GM Dana 44 Front

TK42105 High Performance Thru-Hardened, Chromoly Left Inner Axle Shaft for 1970-1981 GM 4x4s is a USA Made, thru-hardened, direct-fit, high performance replacement 1-5/16" x 36-1/8" x 30 Spline Leftt Inner Axle Shaft for all 1970-1981 Chevy and GMC 1/2 ton and 3/4 ton 4x4 trucks with the Dana 44 4x4 Solid Front Drive Axle (See Tech Note 2 for 1969-1972 axles). TK42106 is Made in USA from top quality American Chrome-Moly forgings. Build to Order 7-10 day lead time to ship.

This shaft is Built to Order therefore your order cannot be canceled once it is placed.

Need More Info? Use the handy Links below to access over 40 years of Dan's product and vehicle specific Tech Notes to easily get the information you need for your vehicle's repair, maintenance, or upgrade project!

Dan the Gear Man® Tech Notes:
U-Joint Specs
1969-1972 GM Dana 44 Front Axles
Applications

Tech Note 1: U-Joint Specs
TK42106 Right (Short Side) Inner Axle Shaft takes universal joints made to Spicer 1350WJ dimensional specifications. The cup diameter for these u-joints is 1-3/16". The 4 cups are grooved to accept Inside C-Clip Snap Rings. The installed Clips fit against the machined inner faces of the axle shaft yokes. The distance between the inside of the axle shaft yoke ears is be 2-3/16". For matching u-joints, see TK40712 and QU90007.

Tech Note 2: 1970-1972 GM Dana 44 Front Axles
For the 1969-1972.5 model years, GM used a small 1310 series axle u-joint with a 1-1/16" cap diameter. GM switched to the stronger 1350WJ axle u-joints with 1-3/16" cup diameter in mid-1972. If you have the early, 1969-1972.5 small u-joint axle shafts, you will need to replace both the inner and outer shafts. Matching outer shaft to TK42105 Left Inner Shaft is TK42104. FOR ALL 1970-1972 AXLES: You will also need to order the newer type QU40058 Outer Axle Shaft Slinger, QU40071 spindle seal and QU40070 axle shaft thrust washer. Note: When the open knuckle Dana 44 front axle was first introduced in 1969 Blazer/Jimmy the inner axle shaft lengths were 1" shorter than 1970 and newer GM Dana 44 front axle applications. TK42105 does NOT fit these narrow 1969 axles!

Applications
Chevy and GMC:
K5 Full Size Blazer/Jimmy: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980
K10/K15/K1500 1/2 ton Suburban and Truck: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980
K20/K25/K2500 3/4 ton Suburban and Truck: 1970, 1971, 1972, 1973, 1974, 1975, 1976, 1977, 1978, 1979, 1980, 1981