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Re: sold the first one .. so this ones mine ... Trekker Build [Re: CJM] #851797 03/18/11 04:25 AM
Joined: Feb 2007
Posts: 21
M
masheen Offline
Need a Spot
Corey, on pg 9 of this thread, you were working on the differentials. Did I understand your report correctly in that you're using the stock 4.10 gearing for the 35's you're using?
I run 33's on mine. After doing the math, I came up with a gear ratio of 5.01 to fool the drive train into thinking it was still turning the stock 27" tires that originally came on my truck when I bought it new. If this gear set were actually available, the truck would accelerate as it did stock and both the speedometer and odometer would once again read true and fuel mileage should also increase. In reality, only 4.88 and 5.29 gear ratio's are the only viable choices available. The 4.88 gears are spot on for spinning a set of 32's whereas the 5.29 set are much better suited to turn 35's; 34.84's to be exact.
So why aren't you using 5.29 gearing? Strength shouldn't be an issue with that ratio. 4.10's are just way too high a gear for running 35's in my opinion. I also didn't see any mention of positraction units although I may have missed something somewhere. I like how you compensated for the use of lifting blocks between the springs and axle housing by fabricating the shock setup to help prevent spring wrap.
Here are two big thumbs up for an excellent build and for sharing it with all of us! <img src="/forums/images/graemlins/kewl.gif" alt="" /> <img src="/forums/images/graemlins/kewl.gif" alt="" />


85 4x4,22r Carb, BFG 33x12.5/15x10 Rocket Startrack rims, 2" Body Lift, Rancho Springs(3"f/2"r), stabilizer & adj tork rod, Skyjacker adj drag link ,Bilstein shox, Line-x'd where it counts, KC HiLites, grill guard, roll bar, dual quad rear bumper.
From the Off-Road World
Re: sold the first one .. so this ones mine ... Trekker Build [Re: masheen] #851798 03/18/11 03:36 PM
Joined: Aug 2003
Posts: 2,854
G
Greg_Canada Offline
Roll Me Over
Quote
Corey, on pg 9 of this thread, you were working on the differentials. Did I understand your report correctly in that you're using the stock 4.10 gearing for the 35's you're using?
I run 33's on mine. After doing the math, I came up with a gear ratio of 5.01 to fool the drive train into thinking it was still turning the stock 27" tires that originally came on my truck when I bought it new. If this gear set were actually available, the truck would accelerate as it did stock and both the speedometer and odometer would once again read true and fuel mileage should also increase. In reality, only 4.88 and 5.29 gear ratio's are the only viable choices available. The 4.88 gears are spot on for spinning a set of 32's whereas the 5.29 set are much better suited to turn 35's; 34.84's to be exact.
So why aren't you using 5.29 gearing? Strength shouldn't be an issue with that ratio. 4.10's are just way too high a gear for running 35's in my opinion. I also didn't see any mention of positraction units although I may have missed something somewhere. I like how you compensated for the use of lifting blocks between the springs and axle housing by fabricating the shock setup to help prevent spring wrap.
Here are two big thumbs up for an excellent build and for sharing it with all of us! <img src="/forums/images/graemlins/kewl.gif" alt="" /> <img src="/forums/images/graemlins/kewl.gif" alt="" />

If he was running a stock 22re he'd definately go with 5.29's.
With a blown 3.4... it's not nearly as necessary, and he'll get better MPG with the 4.10's.
My s/c'd 3.4 in my 89' with 33's and 4.10's does fine. Now, with 5.29's, it would be faster, but MPG would be worse and it'd be winding the engine out on the highway.


89 4Runner
3" BL, M/T locks, 33"bfg mt, bilstein, Kayline, tubebumper, toyotafiberglass panels
TBI: Elocker,3.4 w/ORS,b+b,S2Sstg2cams,arias pistons,P+P intake,TRDs/c,URDpullies+7th,downey headers,MAPECU2,WEGO WB, SupraMAF,walboro255,stg4clutch, EPaOo2 sim
Re: sold the first one .. so this ones mine ... Trekker Build [Re: Greg_Canada] #851799 03/19/11 01:28 AM
Joined: Sep 2003
Posts: 1,856
CJM Offline OP
Body Damage is Cool
greg is right .. on MY build and the HP I have , the 4:10's should sufice .. I do plan on hiway driving --- from show to show -- <img src="/forums/images/graemlins/lol.gif" alt="" />

maybe even trailering my 2wd behind to said shows , so we'll see how it goes


also

thanks guys ..


in the mean time .. I need to clean up/rebuild a few items , starting with the canopy windows

[Linked Image]


.

.


86 4x4 , fiberglass bed , 1/2 doors , hood, etc..
84 Custom 2WD 400HP supra suspension , full frame
83 Trekker SR5
NEW Trekker forum
Re: sold the first one .. so this ones mine ... Trekker Build [Re: CJM] #851800 03/19/11 05:46 PM
Joined: Nov 2001
Posts: 3,272
Oyaji_Jon Offline
Roll Me Over
***
That's awesome, Cory! I can't wait to see the completed pics. You wanna spill the beans on what color you're using? <img src="/forums/images/graemlins/smile.gif" alt="" />


73
-Jon
KJ6GVM

As seen on Expedition with TX plates: VEGETARIAN - An old Indian word for poor hunter

Grampa's Trooper
1974 FJ40
1987 FJ60
Re: sold the first one .. so this ones mine ... Trekker Build [Re: Oyaji_Jon] #851801 03/20/11 12:36 AM
Joined: Sep 2003
Posts: 1,856
CJM Offline OP
Body Damage is Cool
inners were painted a while back .. so you can see the overspary on the cab ..

if you go back a few pages , you can see it


.


86 4x4 , fiberglass bed , 1/2 doors , hood, etc..
84 Custom 2WD 400HP supra suspension , full frame
83 Trekker SR5
NEW Trekker forum
Re: sold the first one .. so this ones mine ... Trekker Build [Re: Greg_Canada] #851802 03/21/11 02:55 AM
Joined: Feb 2001
Posts: 3,935
bkg Offline
Roll Me Over
Quote
Now, with 5.29's, it would be faster, but MPG would be worse and it'd be winding the engine out on the highway.


To be fair to the person asking the question, neither of these are really true. 4.88's and 35's would put the engine back to nearly stock RPM's, so they wouldn't be "winding out" any more than a stock setup. 5.29's would only increase RPM's by 5% - hardly significant under ~3500 rpm.

Both would also likely increase mileage in day-to-day, mixed driving. Numerically lower gears are not a guarantee of mileage - if they were, Toyota would run in the low-3's:1... to be equivelant on stock tires where Corey is on 35's. Gears not only make up for tire size, but added weight as well.

Regardless, with the SC and (likely) decreased weight of all of the 'glass, I'm sure he'll be MORE than happy. My SC'd/URD'd 3.4 w/ 5.29's and 37's is okay... always want more.


Brian K. Gallus
I have nothing important to say.
Re: sold the first one .. so this ones mine ... Trekker Build [Re: CJM] #851803 03/22/11 09:07 PM
Joined: Aug 2003
Posts: 2,311
Rauch_Off_Road Offline
Forum Moderator
Lemme tell you Cory regearing is huge. Believe me you'll notice a huge improvement in drivability especially with a trailer and on the hwy. I was actually shocked at the difference going from 4.10 to 4.56 with 32s made, I think I would have even been happier with 4.88s. Even though you have the SC you'll be wasting some of that power and you won't even know it.

FYI with my BFG 32x11.5s and 4.56 my speedo is back to right on.

Quote
greg is right .. on MY build and the HP I have , the 4:10's should sufice .. I do plan on hiway driving --- from show to show -- <img src="/forums/images/graemlins/lol.gif" alt="" />

maybe even trailering my 2wd behind to said shows , so we'll see how it goes



(aka suprathepeg, aka Sean)
89 v6 SWB truck "BLACK BEAUTY" EB valves, P&P head 30 over.
95 FZJ80. Lifted. locked and rollin on 33s (my dream machine)
Re: sold the first one .. so this ones mine ... Trekker Build [Re: Rauch_Off_Road] #851804 03/23/11 02:33 AM
Joined: Sep 2003
Posts: 1,856
CJM Offline OP
Body Damage is Cool
believe you me .. I have regear'd toyotas meny times over the years .. meny , meny times ..

cool thing with gears .. is I can do it anytime .. if the 4:10's arnt what I want .. then I can go to 4:88's or 5:29's .. I dont know .. and really no one else does either .. i dont see to meny Trekkers around with blown 3.4's in them ?


let me drive it first !! so I can make an informed decision , instead of just doing it !!


.


86 4x4 , fiberglass bed , 1/2 doors , hood, etc..
84 Custom 2WD 400HP supra suspension , full frame
83 Trekker SR5
NEW Trekker forum
Re: sold the first one .. so this ones mine ... Trekker Build [Re: CJM] #851805 03/23/11 01:52 PM
Joined: Sep 2005
Posts: 970
R
RatLabGuy Offline
Rock Warrior
Quote

let me drive it first !! so I can make an informed decision , instead of just doing it !!
.


It dosn't really matter, b/c the first time you drive it you're gonna be soooo happy and grinning ear-to-ear w/ this being done, it could max at 30mph and I bet you wouldn't care, lol.


With 200+ Billion electrical parts, the world most complicated machine is inside your own skull.

Question Reality.
-----------------------------
'89 Rnr DLX "SR4.5", 32s w/ 5.29 locked f/r blah blah
Re: sold the first one .. so this ones mine ... Trekker Build [Re: CJM] #851806 03/23/11 04:01 PM
Joined: Aug 2003
Posts: 2,311
Rauch_Off_Road Offline
Forum Moderator
Yea I know what your saying man. The blown 3.4 will have gobs of power compared to the 22r that was in there for sure.

IIRC the factory setup for 31s with the 3.4 is 4.10. If you are curious about the drivability gains of gears you could borrow a set of 31s for a couple days and see how it feels.

Truck looks killer by the way smile.


(aka suprathepeg, aka Sean)
89 v6 SWB truck "BLACK BEAUTY" EB valves, P&P head 30 over.
95 FZJ80. Lifted. locked and rollin on 33s (my dream machine)
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