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Old 12-21-2017, 12:34 PM   #31
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They don't look too crazy now that it's been lowered a bit more.

Man o man.. That is a beautiful and fast F150. Congrats
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Old 12-21-2017, 02:54 PM   #32
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No...That looks perfect to me other then the air damn might be close to the ground not any lower though then many sports cars.

We are going off topic here but how did you lower it? Some 4X4 lowered trucks I've seen have the CV joints at some radical angles that concerns me.

Mike
Yeah, the air dam is pretty low and does scrape quite a bit, as well as plows snow... The CV joints are at a fairly radical angle as well, however they don't hit, and I rarely use 4WD anyway, even in snow (with snow tires) 2WD (traction off) it does quite well, in some deeper stuff I have had to use 4WD but only to get going a little quicker.

It's a bit of a hodge-podge, it started with the Crown 5/3 system and I added the Belltech lift/lower front struts so the front wasn't higher than the rear. I just remembered that I also had to get a shorter driveshaft because it's a 4x4.
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Old 12-21-2017, 03:39 PM   #33
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Yeah, the air dam is pretty low and does scrape quite a bit, as well as plows snow... The CV joints are at a fairly radical angle as well, however they don't hit, and I rarely use 4WD anyway, even in snow (with snow tires) 2WD (traction off) it does quite well, in some deeper stuff I have had to use 4WD but only to get going a little quicker.

It's a bit of a hodge-podge, it started with the Crown 5/3 system and I added the Belltech lift/lower front struts so the front wasn't higher than the rear. I just remembered that I also had to get a shorter driveshaft because it's a 4x4.
Really nice truck and awesome times, just wanted to ask since i've heard couple of people say this when they lower there 4x4's that they had to get there driveshaft shortened. I'm quite a bit lower than you and i'm as low as you can go on a 4x4 due to the front cv axle's strut clearence i couldnt go any lower lol, even tho i have the most radical front cv angles that doesn't really concern me. But since u mentioned you shortened your driveshaft may i ask why I've been running mine stock length for atleast 10k miles with no problems at all sorry think I might of taken this of topic just kinda curious as to why people are shortening driveshafts.
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Old 12-21-2017, 04:25 PM   #34
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Really nice truck and awesome times, just wanted to ask since i've heard couple of people say this when they lower there 4x4's that they had to get there driveshaft shortened. I'm quite a bit lower than you and i'm as low as you can go on a 4x4 due to the front cv axle's strut clearence i couldnt go any lower lol, even tho i have the most radical front cv angles that doesn't really concern me. But since u mentioned you shortened your driveshaft may i ask why I've been running mine stock length for atleast 10k miles with no problems at all sorry think I might of taken this of topic just kinda curious as to why people are shortening driveshafts.
I had some before and after pictures but I can't find them.

Basically the lower you go, the shorter the distance between the tail-shaft of the transmission and rear end housing becomes. When you lower a vehicle and keep the driveshaft length stock, this pushes the yoke further onto the tail-shaft, while there is room for compression and rebound at the factory ride height, when you lower the truck you are now much closer to the compressed location while actually being uncompressed. The issue with this is now when you are driving and compress the rear suspension you run the risk of bottoming out the yoke on the tail-shaft which can damage the transmission.

I also went to a balanced heavy duty aluminum driveshaft that would be safe at high speeds because I plan on putting this truck well into the 10's...
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Old 12-21-2017, 05:03 PM   #35
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Man o man.. That is a beautiful and fast F150. Congrats
Sorta reminds me of a ford lightning. Sharp! And very fast!! Nice truck!
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Old 12-22-2017, 07:08 AM   #36
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Originally Posted by yonson
I had some before and after pictures but I can't find them.

Basically the lower you go, the shorter the distance between the tail-shaft of the transmission and rear end housing becomes. When you lower a vehicle and keep the driveshaft length stock, this pushes the yoke further onto the tail-shaft, while there is room for compression and rebound at the factory ride height, when you lower the truck you are now much closer to the compressed location while actually being uncompressed. The issue with this is now when you are driving and compress the rear suspension you run the risk of bottoming out the yoke on the tail-shaft which can damage the transmission.

I also went to a balanced heavy duty aluminum driveshaft that would be safe at high speeds because I plan on putting this truck well into the 10's...
Where did you get the new driveshaft?
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Old 12-22-2017, 10:27 AM   #37
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Where did you get the new driveshaft?
I had it custom made, when I went to look up their contact info it looks like they've added it to their product line (and it's quite a bit cheaper).

http://fortwayneclutch.com/product/b...3z-4602-j_b2o/
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Old 12-22-2017, 11:22 AM   #38
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I had it custom made, when I went to look up their contact info it looks like they've added it to their product line (and it's quite a bit cheaper).

http://fortwayneclutch.com/product/b...3z-4602-j_b2o/
I have a 2013 with 126" wheelbase and 2 piece driveshaft. I'm guessing this wouldn't work. That's a fair price though.
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Old 01-13-2018, 12:58 AM   #39
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Old truck 2015 Super Cab XLT 4X4 6 1/2' Bed Bone Stock 2.7L Eco Boost 6 speed Automatic 3.55 Gears and 20" Wheels [email protected] mph 2.05 60 ft.

New truck 2017 Super Crew XL 4X4 STX Package 5 1/2' bed Bone Stock 3.5L Eco Boost 10 speed Automatic 3.55 gears 20" wheels [email protected] mph 2.14 60 ft.
If this truck would have a 60 ft as good as the 2015 probably at least 14.30's!!





FWIW my 2 time slips

Last edited by Mark Miller; 01-13-2018 at 01:01 AM.
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Old 01-13-2018, 10:48 AM   #40
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FWIW my 2 time slips
I don't get the huge diff in mph between our 2.7s, I pulled 99mph stock . I haven't seen a lot of 2.7 slips. You're heavier in a 4x4 and you have 3.55s compared to 3.31s . You had a really good launch. Your 3.5 time is on par due to a decent launch but your mph is a little low from what I've seen. Most 3.5s are pulling 96-99. Where are you running your truck and what were the temps?

Last edited by ImSofaKingWeToddId; 01-13-2018 at 10:51 AM.
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