I really suck at using search features... I'm sure this has been asked before. What all is involved if I want to put 3/4 ton axles under my 1/2 ton '89 suburban? I want to change the gear ratio and all, so a swap is best. I will be putting a Dana 44 in front and a 14 bolt in back. Both will be 3.73 gear ratio. Do I need to change out the leaf springs too? If I do need to change them.... will truck springs work? Will The drivelines need any modification? If so please explain............ If you have a better option let me know, but it needs to be cost effective. Thanks!