Originally posted by Jimmy76FJ40:
<STRONG>and the rear? 60? jiMMy</STRONG>
GM quit with the 60's in the back when the 14 came out (early 70's). 14 full floater is a little stronger than a 60. More in the range of a 70 but the 60 will have better ground clearence.
The SF 14 was late 80's, it came in both 6 and 8 lug. The 6's usualy came in towing package 1/2 ton Burbs and Long beds. The 8's came in 3/4 tons. I would say maybe D60 strength but still a C clip axle and all the same issues any C clip axle has.
That 79 will have the good FF14 but it will track 3 inches more narrow than the front. All GM's do except axles under the vans. The vans are same width as the GM 10,D44 and D60 fronts. Problem is finding one.
If your throwing this 3/4 ton stuff under a FJ or a jeep they will hold ok up but if it's going under something heavy get a 60 front.