Originally Posted by lilmatty5dimes
I just came across some1 selling Dana 44 axles with 3.73 gear out of a 78 bronco front and rear for $500. Would they fit into '02 sport? If not what vehicle do I need to look for in getting some. Thanks for the help. Lilmatty
Any axle will fit under your TJ...you just need to do the work necessary to make it fit. soo....welding, cutting, grinding, fabrication, etc.
A 78 Bronco will have a HP D44 with cast on wedges. You can't weld a spring perch over the cast wedge...cause its cast iron and shaped weird, so you'd need to cut it off...that means retubing the entire housing, which is a ton of work and not for the inexperienced.
The Ford 9" rear would be nice, but the bolt pattern will be 5 on 5.5, not your TJ's 5 on 4.5, and its 5" wider than your TJ.
The most common swap is a HP D30 from an XJ, and a late model Ford 8.8 from an Explorer. Other common front axles include hybrid 609s, 77-79 F250 HP D44's and 78-79 HP D60 "kingpin" front axles. Common rear axle swaps include 9's, D60's, D70s or Ford 8.8's. All require welding & fabrication except the HP D30.