One reason is if you are making repairs or changes to your leaf springs or axles. If you need to remove your original U-bolts for any reason, then you must replace them with new ones. This is because their threads are rolled instead of cut like traditional bolts.
Is it safe to reuse U-bolts on leaf springs?
Why can’t I reuse my U-bolts? This is one of the single most commonly asked questions out there when discussing leaf springs and related components. We get a variety of reactions when we advise our customers that reusing U-bolts is never a good idea.
Can you reuse shackle bolts?
You may be able to reuse the same shackle bolts provided that they are the correct size, are not severely rusted, and are not cracked or otherwise damaged, but not the lock nuts. … When used with lock nuts, the bolt threads could be compromised and I would recommend replacing them.
Do you need an alignment after replacing leaf springs?
I am going to wake this thread so I don’t have to start new one. My 08 Taco was at stealership for recall rear leaf replacement, now truck pulls to right after replace. Dealer said that rear has nothing to do with wheel alignment. I disagree.
Why are U-bolts so expensive?
Ever wonder why fasteners like nuts and bolts are so expensive? You would think something so standard and manufactured in such high volumes would be cheap, but in most places, they’re actually pretty expensive. … They are manufactured in automated factories where they are pumped out by the ton.
How tight should you tighten U-bolts?
Tighten all U-Bolts until they are snug only. Tighten in the sequence shown to approximately 1/3 of recommended torque. Repeat, using the same sequence, gradually increasing the torque through a second and third stage until the recommended final torque is attained.
Can you over tighten leaf spring bolts?
Tightening the shackle bolts too much will squeeze the shackle straps against the leaf springs and the whole suspension system will bind and cause problems. The best thing to do when tightening down shackle bolts is to use lock nuts and tighten them until they are snug and then backed off 1/4 turn.
How do you tell when leaf springs are worn out?
Common Signs Your Leaf Springs Need to Be Replaced
- Difficulty steering or vehicle pulling to one side as you drive.
- Feeling even small bumps as you drive down the road.
- Your truck nose dives, leans back or rolls with momentum.
How long do leaf springs last?
On average a set of leaf springs for a standard pickup truck or van will have a lifespan of about 200,000 miles. This number is not written in stone, and some vehicles will break their springs with far less than 200,000 miles on them while others will go well beyond the 200,000 mile mark before they break.
What do u-bolts do?
A U-bolt is a bolt in the shape of the letter U with screw threads on both ends. U-bolts have primarily been used to support pipework, pipes through which fluids and gasses pass. As such, U-bolts were measured using pipe-work engineering speak. … U-bolts are also used to hold ropes together.
Are the U-bolts slack?
Like any bolt, the biggest problem that can happen with a U-bolt is for the nut to become loose. … Secondly, even if the bolts are not to the point of rattling around, they can become slack resulting in the shorter leaf springs within the leaf spring bundle to move sideways.
How often should you change leaf springs?
In any case, leaf springs should be checked at regular durations, which would be every 12,000 miles for most trucks. With certain trucks, there might be a shorter recommended interval, so it’s always best to check with your auto manufacturer.
When should rear leaf springs be replaced?
Usually when one of the leaves breaks, both leaf springs are replaced. It’s technically possible to replace only the broken leaf, but often when one leaf breaks, other leaves might be worn-out, cracked or fatigued too.
Can you adjust leaf springs?
Position one jack stand three to four inches from the end of the leaf spring, taking care not to lift the car too high. Use a wrench to loosen the bolts and remove the rear spring bolt from the trailing arm and spring. Carefully lower the jack to ease the pressure on the spring.