How to change rear leaf spring - Ford Powerstroke Diesel Forum
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post #1 of 8 Old 07-11-2011, 05:11 AM Thread Starter
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How to change rear leaf spring

My main rear leaf spring is broken. The biggest one that bolts to the frame mounts. Actually the drivers & passenger side is broke.

Is it straight forward on how to change these? Any special tools required?? Also is it strange that both are broke?? They probably did not break at the same time & I have no idea how long they have been broke. My shocks are bad which probably didn't help. I don't tow alot. I do have a 30ft travel trailer that I tow & haul my firewood with the truck. That's about it for working her.

Another question is can the broken leafs be welded? ( pretty sure I know what the answer to that is).

2001 f-350 ext.cab. 7.3 auto non dually. 262k miles. New HD tranny at 67,000 miles. Boost, EGT, Tranny temp gauges. 04/10 DIY check valve VO conversion. 20 plate FPHE,Fass HPFP set at 70 PSI,TIH, 10 micron spin on filter with coolant wrap, 150 micron prefilter, hrydraforce purge valve, 40 gallon greasecar tank with hotfox, SS braided hose to heads, Oil temp, pressure & fuel level gauges. 110K miles on grease. Monitoring with Torque.
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post #2 of 8 Old 07-11-2011, 06:26 AM
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It is very straight forward to change them out and no special tools are required although having large wrenches helps immensely. Just do one side at a time and it is easier if you have 2 floor jacks and several jack stands, but working with one floor jack will be fine but take a bit longer.

It does seem strange that both are broke since these leafs are heat treated to improve strength. Welding the leafs now would cause them to be weaker and brittle. Get some take offs from someone who has upgraded or visit a junk yard. I got a set from a buddy of mine for $50.

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post #3 of 8 Old 07-11-2011, 06:32 AM
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Childs play! Just like evil said, do one at a time. 10X easier to do one at at time. otherwise, you will be crawling, flipping and shrugging!

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post #4 of 8 Old 07-11-2011, 09:53 AM Thread Starter
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Thanks for the info. It looks straight forward but simple stuff usually causes me the most grief. I do have 2 floor jacks & 2 jack stands. My dad has a large socket set which I can use. I think it is 3/4" drive.

I found a place locally that can get them new for 70 bucks a piece. Have them on order & will be in friday.

Is there torque specs for the bolts I will have to remove??

2001 f-350 ext.cab. 7.3 auto non dually. 262k miles. New HD tranny at 67,000 miles. Boost, EGT, Tranny temp gauges. 04/10 DIY check valve VO conversion. 20 plate FPHE,Fass HPFP set at 70 PSI,TIH, 10 micron spin on filter with coolant wrap, 150 micron prefilter, hrydraforce purge valve, 40 gallon greasecar tank with hotfox, SS braided hose to heads, Oil temp, pressure & fuel level gauges. 110K miles on grease. Monitoring with Torque.
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post #5 of 8 Old 07-11-2011, 11:39 AM
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"Good-n-tight" was the torque spec I used and then checked it with a torque wrench to about 125 lb-ft.

Shawn Carlson
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4" MBRP Exhaust
MTW Stage 1 Turbo
Bulletproof 53V FICM
BulletProof EGR Cooler
BulletProof Water Pump
Riff Raff Intercooler Boots
Gogo Diesel Direct Drive Solenoid
BulletProof All-Aluminum Radiator
BulletProof All-Aluminum Intercooler
BulletProof Oil Cooler System w/ Bypass Filter
SCT w/ Custom Tunes (TSD, DJ's, Innovative, Gearhead, QuickTricks)

Exterior Mods:
Bilstein 5100 Shocks
Icon Adjustable Trac Bar
Firestone RideRite Air Bags
BDS Dual Steering Stabilizer
Aluminum Finned Differential Cover
Reese 16k Manual Slider 5th Wheel Hitch
Icon 2.5" Leveling Kit w/ F-350 rear blocks
20" BMF Novakanes wrapped in 33" Nitto Terra Grapplers
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post #6 of 8 Old 07-11-2011, 12:29 PM
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Lol-just tighten them until you are confidant they are tight. As for springs, get some out of a newer truck-2005-2007 are a great upgrade, but 08-up are even better.



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post #7 of 8 Old 07-28-2011, 08:16 AM Thread Starter
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Got them changed a couple days ago. Wasn't a real bad job. Definetly done much worse jobs. Only had trouble with 2 bolts. They didn't wanna come out. Took as long to get those bolts out as it did to change the springs & put everything back together. Trucks sits about an inch & a half higher in the back now.

I checked with Ford to see if there was a torque spec & there is. 185ftpds. 185ftpds is ALOT!!! My arms was sore when I was done.

Thanks for the help guys.

2001 f-350 ext.cab. 7.3 auto non dually. 262k miles. New HD tranny at 67,000 miles. Boost, EGT, Tranny temp gauges. 04/10 DIY check valve VO conversion. 20 plate FPHE,Fass HPFP set at 70 PSI,TIH, 10 micron spin on filter with coolant wrap, 150 micron prefilter, hrydraforce purge valve, 40 gallon greasecar tank with hotfox, SS braided hose to heads, Oil temp, pressure & fuel level gauges. 110K miles on grease. Monitoring with Torque.
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post #8 of 8 Old 07-28-2011, 09:43 AM
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I had one done last spring at a spring shop. It cost about $200 and I didn't have to deal with it. Plan on new U bolts as well as the leaf.
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