Ford 8.8 Strength

jakes89f150 · Sep 21, 2008

so i have an 89 f150 with a 302 and a AOD tranny, 8.8 31spline rear with full detroit and 3.54's gears. Turning 33x13.5 LTB's. My rig weighs right around 6000lbs.
there has been times where the skinny pedal has been used to get over some stuff. Theres also times that my rig gets to hopping a little bit. I havent had any issues thus far but dont really want to ether. Im thinking about stepping up to 35's at some point and am wondering if i should be worried about the 8.8 holding up?

KarlVP · Sep 21, 2008

I beat the piss out of my 8.8 in the TJ. But it is only 4420 and running a 4 cyl.

Watch out for the ring gear coming off the carrier though. It has happened many a time with a detroit/arb.

boxboy · Sep 21, 2008

I ran 38.5 TSLs 4.56 and an ARB it held up fine. I welded the axle tubes in and I had a 4-link with sime extra trussing the only issue I had was I spun the ARB washer pulling the air line a part but that was a quick fix.

edit: it was in a Jeep with a Healthy 4.2L 5 speed.

jakes89f150 · Sep 21, 2008

Thanks guys, good to know

Damnyankee · Sep 22, 2008

got a buddy who runs 38.5 x14 boggers with a TBI 360, full detroit, he broke 2 stock shafts in like 5-6 years.. he just threw in dutchmans, so we'll see how they hold up.

Oh ya, its a jeep with full cage.

Jaydog · Sep 23, 2008

boxboy said:
I ran 38.5 TSLs 4.56 and an ARB it held up fine. I welded the axle tubes in and I had a 4-link with sime extra trussing the only issue I had was I spun the ARB washer pulling the air line a part but that was a quick fix.

edit: it was in a Jeep with a Healthy 4.2L 5 speed.

And it is still being beat, and holding up :awesomework:

PUO-BANNED · Sep 23, 2008

boxboy;465996 Healthy 4.2L[/QUOTE said:
No such thing. :haha:

I would not trust an 8.8 at all in a fullsize rig. even a ford. do not waste your time with that 1/2 ton crap sell the locker to one of these jeepin fags and pick up a Sterling 10.5 rear and a solid axle for the front.

jakes89f150 · Sep 23, 2008

PUO said:
No such thing. :haha:

I would not trust an 8.8 at all in a fullsize rig. even a ford. do not waste your time with that 1/2 ton crap sell the locker to one of these jeepin fags and pick up a Sterling 10.5 rear and a solid axle for the front.

The sami or yota will come before that

im just making sure im not pushing the limits of my 8.8.