My 1989 f250 4x4 has the leaf spring ttb I was just wondering how strong of a setup it is. I go wheeling from time to time on the beach and I have to go through cow/horse pastures when I have to use the 4x4. Since I have to rebuild the motor I'm wondering if it would be a good time to think about a SAS or not. The 4x4. Works flawlessly but I want to avoid future problems. What would I need to do a SAS?

 

I forgot to ask if y'all think the ttb would be just fine in my application of what I have to do with this truck

 

You're not rock crawling, you're fine. Keep your ball joints and axle bushings in good shape and you'll be good to go.

 

ttb axles have a bad habit of breaking rite above the driver side spring.
if you are rebuilding the truck, putting a dana 60 under it only an extra days work.

 

Dont forget the extra 1K minumum for a decent D60. I've only ever heard of the TTB cracking on dedicated plow trucks and trail rigs.

The leaf sprung D44 is just as strong as a solid D44. It just has MUCH less suspension travel and a rough ride.

 

i had at least 20 come through the body shop when i had it. and none of them were plow trucks.
the one F-250 i had (1989) broke the D-50 there, it never plowed, and the only off road driving it ever did was on job sites at low speeds.
it did however have close to 200,000 miles on it when i noticed it. and it was a fresh crack, there was just a very faint rust in the crack when found.

 

My entire front end was rebuilt in 2003 along with the rear end and transfer case. It cost one of the p.o's 6000 dollars to get it all done I have a stack of service records in the glove box I just didn't know if the d44 would hold up for what I wanted it to do.

 

Leave the TTB in the truck until it causes you problems