F-350 - Replace 4" Rear Blocks w/ 2" from F250

[jascott]

I am going to order either a F250 or F350 CCSB 4x4 w/ the 6.7. I would prefer the F350 due to the better hydroboost brakes and the additional load capacity.

The main concern with the F350 is the height of the rear end. It is harder to use the bed and I tow a 5th wheel trailer which is already about maxed out height wise with my F250. I am concerned the trailer won't tow level and/or sit too close to the bed rails if I adjust the hitch.

Has anyone replaced the 4" blocks with the 2" blocks from the F250? Any issues with driveline angles?

[CT Performance, Inc.]

Shouldn't be any problem..its what ford used to do when the SD's first came out..dealers did it for free!

[4x4ord]

I don't know for sure but I would either get a wheel alignment afterward or at least watch your tire wear closely as it might affect the alignment.

[CT Performance, Inc.]

Will not affect the alignment in any way.

[ShirtaDay.com]

I'm thinking of going in the opposite direction. How hard is the swap?

[sagebel]

Not hard. I just installed the Ready Lift Stage 3TP leveling kit which has a 5" rear block.

Jack up back of truck. Remove tires. Support truck frame on jackstands. Support rear axle with floor jack. Un-bolt U-bolts. Remove block. Install new block. Put it all back together.

FWIW, I have the stock 2" F-250 blocks and hardware if anyone wants them.

[superdave267]

Just installed my 4" blocks on my F250 this weekend then added the Firestone Ride Rite Air helper springs. Truck is awesome. It looks like a truck now.

[mikiewpb]

Originally Posted by superdave267

Just installed my 4" blocks on my F250 this weekend then added the Firestone Ride Rite Air helper springs. Truck is awesome. It looks like a truck now.

Superdave267 - I'd like to do the same to my 2011 f250 and had a few questions. Did you use the stock F350 blocks and if so, how/where did you get them? Did you need to add shims to correct the driveshaft angle? Were you able to use the stock shocks (i have the FX4 package)? I presume you needed new u bolts?

Any help would be appreciated.

[superdave267]

I used the ReadyLift 4" blocks in the rear. They were easy to install. It only took me about 1.5 hours to install. Had a little vibrations ReadyLift sent me a spacer for drive shaft since I have a two piece. I have not installed the spacer yet.

[mikiewpb]

Originally Posted by superdave267

I used the ReadyLift 4" blocks in the rear. They were easy to install. It only took me about 1.5 hours to install. Had a little vibrations ReadyLift sent me a spacer for drive shaft since I have a two piece. I have not installed the spacer yet.

Thanks. I think I would need a shim as well to correct the drive shaft angle. I have a short bed. Did you get new u bolts from ReadyLift as well?