Drivetrain Tech General discussion of drivetrain for the Ford Ranger.

7.5 and 35's...

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Old Mar 24, 2006
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7.5 and 35's...

Just wondering how bad it actually is to run 35's with the 7.5 rear. I really want to run 35's and I should be able to fit after the spindle lift...but will i "kill" the rear? Anyone ever done this? Or should I just say no to the spindle lift and run 33x12.5's on a MT classic II 15x8??? Spend the rest of that "lift money" on a tuner and exhaust...etc.
 
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Old Mar 24, 2006
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From: Valrico, Fl 33594
why don't ya just switch rear ends either grab yourself a level 2 rear or a exploder 8.8 get the 31 spline and possibly some rear discs.

level 2 are basically bolt right up...
 
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Old Mar 24, 2006
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Originally Posted by KARPE
why don't ya just switch rear ends either grab yourself a level 2 rear or a exploder 8.8 get the 31 spline and possibly some rear discs.

level 2 are basically bolt right up...
thats along the lines of what I was thinking...then i'm getting into some major work though...I don't know anything about swapping axles. I mean i'm pretty profecient when it comes to vehicle mechanics, but, i've never done it. And I really would need some help...I belive you have to take off the bed?

I really want 35's...I just think I will be unsatisfied with 33's and a spindle lift. I have a feeling 33's might be too small...I was thinking about going all out with my lift and everything

body lift
spindle lift
lvl2 axle (8.8 w/ 4.10's LS)
15x8's w/ mt classic 2's
torsion bars are cranked and mud flaps are gone


I doubt I would need to trim...I don't see that I would have to
 
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Old Mar 24, 2006
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you'll snap axle shafts in that 7.5 .... i snapped both of mine with just 33s ... so 35s would def kill it .... just my experience


edit: i had a 7.5 in my 88 b2 ...
 
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Old Mar 24, 2006
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Originally Posted by Rangerboy03lvl2
you'll snap axle shafts in that 7.5 .... i snapped both of mine with just 33s ... so 35s would def kill it .... just my experience


edit: i had a 7.5 in my 88 b2 ...
ouch...32's might be in my near future

i'm either going all out or saving that money and getting a lvl2 and bl it w/ 33's and leave the susp alone
 
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Old Mar 24, 2006
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Just from my experience, I have a 3.0 in my 99, and WAS running 33's, and grenaded the ring and pinion. I have a 8.8 now, put a set of 35's on for a day and found out that 35's are not a wise choice with a 3.0 Vulcan. LOL had no power, So I'm stickin to my 33's.
 
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Old Mar 24, 2006
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Originally Posted by RangerNVS
Just from my experience, I have a 3.0 in my 99, and WAS running 33's, and grenaded the ring and pinion. I have a 8.8 now, put a set of 35's on for a day and found out that 35's are not a wise choice with a 3.0 Vulcan. LOL had no power, So I'm stickin to my 33's.
good advice...i think i might spend my money elsewhere

i promised myself I would not do any major mods to this vehicle (no motor/tranny swaps or axle/gears) because thats what i've done to all my other ones. I swwapped my 86 caprice w/ a zz4 and my 88 civic w/ a b16

I really really really want another dirtbike...so maybe it's just better i got 32's, I can't stand these stockers
 
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Old Mar 24, 2006
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I ran 33s on my 7.5 with 4.56 gears for like 8 months fine no problems at all them i put the 35s on and went wheelin one day and tried to pull a friend and well just say i didnt pull him out and didnt drive my truck home either. 35s are just to much for a little 7.5.
 
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Old Mar 24, 2006
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i can help both u out with swapping some 8.8s under your truck. if u really want to swap an 8.8 pm me.
 
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Old Mar 24, 2006
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Originally Posted by ryanrebel125
i can help both u out with swapping some 8.8s under your truck. if u really want to swap an 8.8 pm me.
i might do it, but not for a little while depending on how much $ total this would cost.

That would be awesome if you could help out...I would probably do spindles/bl at the same time...or maybe do 2 seperate times. I would def. pay for the beer/soda/food and some of your time. That would be aweomse!!!
 
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Old Mar 24, 2006
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make it till you break it.

New make it stronger. : )
 
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Old Mar 25, 2006
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a 7.5 can easily stand 35s. the 7.5 uses the same 28-spline axleshafts that most 8.8s do (the shafts are interchangeable between them) the weak point in the 7.5 is the spider gears, which are of no concern if you get a locker...
 
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Old Mar 25, 2006
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Originally Posted by TireIron
a 7.5 can easily stand 35s. the 7.5 uses the same 28-spline axleshafts that most 8.8s do (the shafts are interchangeable between them) the weak point in the 7.5 is the spider gears, which are of no concern if you get a locker...
I was thinking about getting the powertrax lock-rite. It's seems to be the best choice for me.

So if I get that, I can run 35's??? That would be awesome. I mean 90 percent of my driving is on road, and off road I don't even dog it.
 
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Old Mar 25, 2006
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I'll disagree with that....7.5's weak point is it's cross pin. Not spyder's.
 
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Old Mar 25, 2006
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Originally Posted by TireIron
a 7.5 can easily stand 35s. the 7.5 uses the same 28-spline axleshafts that most 8.8s do (the shafts are interchangeable between them) the weak point in the 7.5 is the spider gears, which are of no concern if you get a locker...

that may be, but i snapped 2 of them with 33s, i dont think 35s can handle it ....
also my spider gears were welded together, cheap *** locker in a sense, so the next weakest thing were the axle shafts. and since he is planning on a locker he most likly will break axle shafts .... just my 2 cents though
 
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Old Mar 25, 2006
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well, i might play it safe and just do an 8.8 swap if i decide to mod my truck like that.

spindle lift and 33's...would that be ok for the 7.5?

or should I call it a day and take the money I would have thrown into the 8.8 and get a level 2???
 
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Old Mar 25, 2006
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You should just find an explorer axle and get ryanrebel to help you. The lvl 2 axles are a bit harder to find(but if you find one get it).

Maybe take this vehicle here as a source of inspiration.

http://www.cardomain.com/ride/678949/1

It has 4.0 tho...and a hot gf...

Aaron
 
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Old Mar 25, 2006
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i can more than likely get u a 8.8 for around $100. so then u can buy a locker for it. might even be able to get u a 31 spline 8.8 but it will have drums like u have now.
 
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Old Mar 25, 2006
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Originally Posted by RangerNVS
I'll disagree with that....7.5's weak point is it's cross pin. Not spyder's.
I Personally ate my spydergears out of the 7.5 cross pin was fine and if the spyders were welded the axles cant spin where a lock right will alow some sliping unlike a spool or welder. For the ***** of a lockright buy an explorer axle and be done with it.
 
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Old Mar 25, 2006
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yea, if you are going to upgrade to an 8.8 because of possibility of breaking an axleshaft, then you have to go with the 31-spline out of an explorer or FX4 L2. the 28-spline 8.8 used in almost all 8.8 rangers uses the EXACT SAME axleshafts that the 7.5 uses, so upgrading to a 28-spline 8.8 WILL ONLY gain you strength in the differential, it will get you a larger ring and pinion, and a larger carrier and larger selection of traction aid devices. so don't bother going to a 28-spline 8.8 if you are only worried about breaking axle shafts in your 7.5. also an easier solution to breaking axle shafts in the 7.5 is getting a set of 28-spline yukon axleshafts. with those and a drop in locker with the hardened crosspin that comes with it the only spot weaker than the 8.8 is the ring and pinion and actual carrier (which i have seen pictures of broken on a 7.5 and 8.8).
 
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Old Mar 25, 2006
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Originally Posted by ryanrebel125
i can more than likely get u a 8.8 for around $100. so then u can buy a locker for it. might even be able to get u a 31 spline 8.8 but it will have drums like u have now.
I don't even mind if it has drums...i'd actually prefer it, they are so much less work. I really want this to be as painless as possible.

So you would have to weld the new spring perches on the 8.8 out of the explorer, but if we find a lvl2 one, then it's just bolt up? I will probably get the powertrax no-slip for the 8.8. I have to get my funds in order so this probably won't be for a few more months. I would actually like to wait another 10k miles or so (only a few months) to get my warranty off. As stupid as it sounds

I would like the 31 spline if we could do that. Like I said, it's still not for a few months...maybe we can have another fla meet when we do it. Maybe I'll do everything then...the spindles/bl and the axle/locker

That will be a lot of money!!! And what about changing gears...like to 4.56 (I will run 35's) How much will gears run?

BL=300
spindles=300
mt 15x10 classic II's=400
35x12.5x15 buckshots=i'm guessing 600
8.8=100
locker=200???
gears???

well, thats like a christmas time thing

probably set that up for this winter...I'll just do everything then. I'll drive down to daytona on stockers, roll back up to springs on 35's that would be nice

edit: how would that be as a DD??? no good??? gas milage with 35's and 4.56 (even though I def did not buy the truck for gas milage)
 

Last edited by jrpro130; Mar 25, 2006 at 10:40 PM.
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Old Mar 25, 2006
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I'll sell ya my 8.8...

It's only 28 spline, 3.55's, but it does have a l/s...

Brenton
 
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Old Mar 25, 2006
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Originally Posted by EdGe_wannabe
I'll sell ya my 8.8...

It's only 28 spline, 3.55's, but it does have a l/s...

Brenton
I need a 31 spline with 4.10's...you got the l/s part brenton

if ya come across one though, I might take it off your hands
 
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Old Mar 26, 2006
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gears around 150 or so.
 
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Old Mar 26, 2006
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Originally Posted by jrpro130
I need a 31 spline with 4.10's...you got the l/s part brenton

if ya come across one though, I might take it off your hands
Okie dokie!

Brenton
 
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