Lowering rear end
Senior User
Joined: Dec 2019
Posts: 310
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Cross-Country
Joined: Sep 2007
Posts: 58
Likes: 4
From: Gilbert, AZ
Wow this is a long thread, well i have the same dilemma needing to lower the rear of my 2020 F450 4x4 Crew Cab DRW. So I saw one thread by VooDooRob that said the part numbers for the shorter blocks and U-Bolts were for a F450 but I wanted to know if they would work on the new 2020. I just hooked up to my 5th wheel trailer and do not have enough room between the tailgate and the underside of my 5th wheel travel trailer.
Cross-Country
Joined: Sep 2007
Posts: 58
Likes: 4
From: Gilbert, AZ
Well I just went out to measure the block on my rear axle and their is only a 1" block so I really don't know what I can do to lower the rear of my truck. There is a 2" factory rake on my truck.
Freshman User
Joined: Jan 2020
Posts: 31
Likes: 0
I had a chance to crawl under an 2020 f250 and 350 today. Both appear to have the same 2” block. I can’t be certain since I didn’t have my reading glasses on, but it looked like the back side was just a touch over 2 in, and the front a touch under. My guess is the new 2020 block has a built in taper just like our 2017-2019 blocks just at a lower height. No telling when they’d be available or at what cost, but it looks like a viable alternative to purchasing the aftermarket or older truck (no taper) blocks. Other than the block height, I didn’t see any difference in the suspension to the 2019’s sitting near by.
Tuned
Joined: Oct 2016
Posts: 303
Likes: 35
[QUOTE=camping nut;19039594]Blocks do not change the pinion angle as much as shackles.
They do if you go from flat to tapered, or tapered to flat
They do if you go from flat to tapered, or tapered to flat
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Tuned
Joined: Oct 2016
Posts: 303
Likes: 35
I had a chance to crawl under an 2020 f250 and 350 today. Both appear to have the same 2” block. I can’t be certain since I didn’t have my reading glasses on, but it looked like the back side was just a touch over 2 in, and the front a touch under. My guess is the new 2020 block has a built in taper just like our 2017-2019 blocks just at a lower height. No telling when they’d be available or at what cost, but it looks like a viable alternative to purchasing the aftermarket or older truck (no taper) blocks. Other than the block height, I didn’t see any difference in the suspension to the 2019’s sitting near by.
Senior User
Joined: Dec 2019
Posts: 310
Likes: 1
Read through the thread and might have missed it.
I have 3.25" blocks right now and am ordering 2" blocks. Can anyone tell me what Ford U-bolt's I should order? I haven't found anything that shows lengths of the OEM U-bolts.
Thanks
I have 3.25" blocks right now and am ordering 2" blocks. Can anyone tell me what Ford U-bolt's I should order? I haven't found anything that shows lengths of the OEM U-bolts.
Thanks
Logistics Pro
Joined: Feb 2005
Posts: 3,529
Likes: 390
From: SEVA
There were several mentions of U-bolt lengths and their part numbers above (the search function should help you find 'em), but you really don't need new U-bolts. The U-bolts are torque-to-yield, and you will be using "fresh" threads further up the U-bolt. Apparently, it is the U-bolt threads which are torque-to-yield because I've seen no mention of having to replace the nuts each time. Of the two parts, the nuts may be a harder steel than the U-bolts. If you reuse the U-bolts, you'll want to trim off the excess afterwards.
Senior User
Joined: Dec 2019
Posts: 310
Likes: 1
There were several mentions of U-bolt lengths and their part numbers above (the search function should help you find 'em), but you really don't need new U-bolts. The U-bolts are torque-to-yield, and you will be using "fresh" threads further up the U-bolt. Apparently, it is the U-bolt threads which are torque-to-yield because I've seen no mention of having to replace the nuts each time. Of the two parts, the nuts may be a harder steel than the U-bolts. If you reuse the U-bolts, you'll want to trim off the excess afterwards.
I did search but wasn't clear which ubolts go with the 2" blocks. Maybe I'm just slower than usual today.
Freshman User
Joined: Jan 2020
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I just removed the 2 " blocks from my 01 F250 4x4. the ride and braking greatly increased. I had to installed new u-bolts since the existing ones had the bolts at the end of the thread area. I used u-bolts from Husky, rockauto has lowest price for them. Husky Spring - Home
Senior User
Joined: Dec 2019
Posts: 310
Likes: 1
I just removed the 2 " blocks from my 01 F250 4x4. the ride and braking greatly increased. I had to installed new u-bolts since the existing ones had the bolts at the end of the thread area. I used u-bolts from Husky, rockauto has lowest price for them. Husky Spring - Home