lockers in the rear??

Started by builttoabuse, August 12, 2011, 10:37:29 AM

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builttoabuse

I have a 92 runner ifs in the front. i wanna know if they will go straight on or if any mods or fab or anything any info is useful thanks.
toy obsessed!

superyota

are you talking about putting a locker in the rear?  they bolt right up.  no special fab needed.
ABD Motorsports
#4475

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builttoabuse

yes thats what im talking about thank you im all stock im looking for lil things to mod while saving money for sas :thumbs:
toy obsessed!

superyota

i would go with a aussie locker or spartan in the rear, since your stock.  no mod's needed.
ABD Motorsports
#4475

If you can't convince them, confuse them.
Placer County Crawlers - President 2011-2016
www.placercountycrawlers.com

Rubicon Trail Foundation - Property Committee member
Friends of Fordyce - Board Member
KK6QDW

builttoabuse

ok thanks for the info. for the future do you think id need to change that locker when built?
toy obsessed!

superyota

Quote from: Arron 92 4runner on August 12, 2011, 10:45:38 AM
ok thanks for the info. for the future do you think id need to change that locker when built?

no, it will hold up to 37 inch tires no problem.  and if it's a v6 4runner, you can bigger because you have a stronger carrier in the third.  you'll be set with a aussie or spartan.
ABD Motorsports
#4475

If you can't convince them, confuse them.
Placer County Crawlers - President 2011-2016
www.placercountycrawlers.com

Rubicon Trail Foundation - Property Committee member
Friends of Fordyce - Board Member
KK6QDW

builttoabuse

okay thanks i wont be haveing tires like that for a long ass time haha. another question if you dont mind whats the biggest and safest tire and rim size to go with without regearing?
toy obsessed!

superyota

that all depends on how much you like to ride your clutch.  for the street, you'll be fine with whatever tire.  if your taking it wheeling, i would look at tire charts and see what fits you best.  it usuall goes 33-35=4.88, 35 and bigger= 5.29s.  but if your running street, or have dual cases for the trail, you can get away with stock 4.10's for a while.  I wheeled and dail drove my truck for almost 6 years with stock 4.10's before going 5.29.  but it does take it's tole on a clutch.
ABD Motorsports
#4475

If you can't convince them, confuse them.
Placer County Crawlers - President 2011-2016
www.placercountycrawlers.com

Rubicon Trail Foundation - Property Committee member
Friends of Fordyce - Board Member
KK6QDW

builttoabuse

toy obsessed!

builttoabuse

whats stock gearing on theses trucks?
toy obsessed!

superyota

you might be 4.88 already then, with an auto.  do a little research and see.
ABD Motorsports
#4475

If you can't convince them, confuse them.
Placer County Crawlers - President 2011-2016
www.placercountycrawlers.com

Rubicon Trail Foundation - Property Committee member
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KK6QDW

builttoabuse

okay thanks for all the info ill def do research all i do is sit on here when im not working and read haha :yupyup:
toy obsessed!

Snowtoy

With it being an auto, you could have anything from 4.30 gears to the factory 4.87's, depending on what tires came on it.  If it is a 3.0 and came stock with 31's it would have the 4.88's, if it is a 4 cylinder and came stock with 28's it could have either 4.30's or 4.56's.  Nything over 33's is really going to suck the power and your mpg will suffer.  My sister had a '95 3.0 auto with 31's and 4.56's(didn't come stock with the 31's)  and she at best got 13mpg's on the highway.

If you are as new to wheeling as you sound, I wouldn't run anything beyond 31's or 32's right now(depending on what your stock gears are), and spend money on body protection(sliders/bumpers), Hi-lift jack, tow strap, shovel, etc., and find a buddy with a rig to go wheeling with.  Don't worry about traction devices yet, learning how to get unstuck, or through a tough section w/o lockers will pay dividends down the road, as you get further into the hobby.  It is alot better learning what it takes to get an open diff rig through a tough section now while you are new, then having to figure it out when your gear fails, or a rig you are with gear fails.
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

builttoabuse

i know dont remind me of the mpg :( okay thanks
toy obsessed!

Snowtoy

Sounds like it is the 3.0.  To determine the gears you have now, look at the door sticker, the gear code will either be G254 for 4.56 gears, G284 for 4.30's, or G144 for 4.87 gears. 

If you want an idea of teh difference in engine speeds the larger tires will have these Drivetrain Calculators will show you.  You can find the A340 auto trans gear ratios here at Marlin's Transmission Gear Ratio Chart.  Start with the stock set-up and go from there.  The closer you can keep the rpms to the stock numbers the better your performance and fuel economy will be.
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

builttoabuse

okay so i checked i got g144 witch means 4.87.
toy obsessed!

builttoabuse

toy obsessed!

Snowtoy

That means that the 31's came stock, so 32's which will fit with a little work, wont have to much of a drastic impact on the performance.  Once you lift and to run 33's or bigger, you will want to swap to 5.29's or swap in a 5-spd transmission.  33's will clear with about a 2" body lift, possibly with 1.5" ball joint spacers and a diff coil springs.

I know you have to pick up a different rear third member to run larger gears, the oem 4.87 housing is different and wont allow the use of 5.29 gear set, but I am not sure if it effects the use of a locker.  Fortunately both the oem 4.87 diffs have resale value,it would likely be a wash when buying used diffs w/5.29's.
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

builttoabuse

like a 5 speed is in a manuel?
toy obsessed!

Snowtoy

Yes, 5-spd as in a manual transmision.

If you look at the R150f gears(3.0's manual trans) on Marlin charts, use those with the rpm calculator for a given vehicle speed/tire/diff gear combo, and compare them to the ones for your auto, you can see the difference in engine speed.  The difference in engine speed and the resulting lower mpg's between manuals and auto's is why most of the auto manufacturers have gone to 5, 6 or more speed(not including over drive) auto transmissions today.
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod

dirtybird

Quote from: Snowtoy on August 13, 2011, 03:03:47 PM
That means that the 31's came stock, so 32's which will fit with a little work, wont have to much of a drastic impact on the performance.  Once you lift and to run 33's or bigger, you will want to swap to 5.29's or swap in a 5-spd transmission.  33's will clear with about a 2" body lift, possibly with 1.5" ball joint spacers and a diff coil springs.
I thought any v6 third member in those years from truck or 4 runner were the same?
I know you have to pick up a different rear third member to run larger gears, the oem 4.87 housing is different and wont allow the use of 5.29 gear set, but I am not sure if it effects the use of a locker.  Fortunately both the oem 4.87 diffs have resale value,it would likely be a wash when buying used diffs w/5.29's.

Snowtoy

QuoteI thought any v6 third member in those years from truck or 4 runner were the same?[\quote]

Yes, and no.  All of them are interchangeable, just the design of the oem 4.87 3rd doesn't allow the use of a taller gear set, like the other ones do.  I am not sure it is the carrier or the pinion/ring gear that is different, but I know nobody makes gears for it other than Toyota, and you are limited to the 4.87 factory gear set.  Fortunately you can usually find 4.10 equipped 8" 3rd members for about $50, so swapping to taller gears isn't a hassle.
'90 black X-cab mod'd 3.0, 33's/4.88's, rear ARB, custom bumpers, sliders, safari rack, etc.
'91 Blue X-cab 22re, 35's/5.29's,Truetrac front, ARB rear, dual cases, and custom Safari flatbed, bumper, interior.
The money pit '87 Supra resto/mod