Please Help. broken differential
Aug 7, 2010 | 01:16 PM
#1
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Joined: Aug 2010
Posts: 11
Likes: 0
From: wisconsin
Please Help. broken differential
I have some trouble. me and my dad were up north and we were hitting some trails and everything was fine. got on the highway and the rear differential crapped out on us. i was driving up hill at 55 in fifth gear and the truck acted up and i pulled over. took it to a shop and they said the rear differential is gone.
the truck is a 1990 toyota pick up with a 2.4L 4CYL with 4WD and a five speed manual transmission.
the question,
what years/models/engines/drivetrains is my rear compatible with?
i am looking to get a used rear end from a junk/salvage yard and need to know where to start.
Please Help
the truck is a 1990 toyota pick up with a 2.4L 4CYL with 4WD and a five speed manual transmission.
the question,
what years/models/engines/drivetrains is my rear compatible with?
i am looking to get a used rear end from a junk/salvage yard and need to know where to start.
Please Help
Aug 7, 2010 | 01:20 PM
#2
pretty much any 4 cyl 4WD rear third should work. Your current gears are more than likely 4.10's. Auto trans equipped trucks/4runners may have 4.56's. WHen pulling a third to verify the correct gear ratio the simpliest method IMO is to count the teeth on the ring gear and divide that by the number of teeth on the pinion gear...
be sure to check any used third for excessive play in the bearings etc...
Good luck and welcome to Yotatech!
be sure to check any used third for excessive play in the bearings etc...
Good luck and welcome to Yotatech!
Aug 7, 2010 | 01:22 PM
#3
Welcome to YotaTech!!!
Wow that freakin sucks man!! There's TONS of info on here to help you with this. Try this: https://www.yotatech.com/forums/f116...osting-204178/
Wow that freakin sucks man!! There's TONS of info on here to help you with this. Try this: https://www.yotatech.com/forums/f116...osting-204178/
Aug 7, 2010 | 01:38 PM
#7
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Joined: Aug 2010
Posts: 11
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From: wisconsin
is there some way i can find out what my rear end is?
with what u guys have given me i see a standard 8" but idk if thats what i have. i also see that 2wd and 4wd rears are the same? just wanna make sure i understand all of this correctly
with what u guys have given me i see a standard 8" but idk if thats what i have. i also see that 2wd and 4wd rears are the same? just wanna make sure i understand all of this correctly
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Aug 7, 2010 | 01:42 PM
#8
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Joined: Jul 2004
Posts: 9,173
Likes: 6
From: Puyallup WA.
* YES 79-95 8" 3rd members from either truck/4runner will go into any 8" housing... FRONT or REAR
* V6 housing use bigger bearings and 4 spider gears in the carrier which make them stronger than 4cyl which has the smaller bearings and 2 spider gears. _HOWEVER_ you can use 4cyl housing with a V6 without *many* issues. I've been running a 4cyl with a lockright in the rear of my 89. (while i am having lockright issues, the housing and gears are soild). my brother has been running 456 4cly open in the rear of his pickup for years. If you do a 350 swap, you'll most likely want the v6 housing.... otherwise the power (or lack of power) the 22re/3vze create aren't an issue. you can itenify the difference between the V6 and 4cyl housing based on the number of "ribs" they have.... V6 have 4, 4cyl have 3 as see here:
* 79-85 rear ends are narrower than 86-95. so while the 3rd member is inter changeable the axle shafts are not. the Drum are also smaller on pre 86 axles.
*79-95 Pickups and 84-89 4runners are leaf sprung (unless otherwise molested) 90-95 4runners are coil sprung (agian, unless otherwise molested)
* there are several "oem" gear ratios available.. make sure you get the correct one to match your existing ratio when pulling one from the J-yard... otherwise you'll be back here asking which transfercase you need to pull from said J-yard.
* you can tell the gear ratio by several methods: Color code, VIN code, or simply counting teeth.
* Color code method: toyota painted the Pinion end from the factory:
410: Pink
430: Blue
456: Yellow
4:88: White
VIN code:
410: G292/G294
430: G282/G284
456: G254
488: G144
Counting the Teeth Method
410: 41(r)/10(p)
430: 43(r)/10(p)
456: 41(r)/9(p)
488: 39(r)/8(p)
* IF you use *Factory* 4.88 gears, you are _UNABLE_ to regear them later. factory 4.88s use a offset pinion, that only work with that ring/pinion set.
* IF your pinion nut loosened up, you _CANNOT_ just tighten it back up... you have NO way of knowing the pinion depth/backlashing on the gears and will most likey blow them up shortly there after.
* V6 housing use bigger bearings and 4 spider gears in the carrier which make them stronger than 4cyl which has the smaller bearings and 2 spider gears. _HOWEVER_ you can use 4cyl housing with a V6 without *many* issues. I've been running a 4cyl with a lockright in the rear of my 89. (while i am having lockright issues, the housing and gears are soild). my brother has been running 456 4cly open in the rear of his pickup for years. If you do a 350 swap, you'll most likely want the v6 housing.... otherwise the power (or lack of power) the 22re/3vze create aren't an issue. you can itenify the difference between the V6 and 4cyl housing based on the number of "ribs" they have.... V6 have 4, 4cyl have 3 as see here:
* 79-85 rear ends are narrower than 86-95. so while the 3rd member is inter changeable the axle shafts are not. the Drum are also smaller on pre 86 axles.
*79-95 Pickups and 84-89 4runners are leaf sprung (unless otherwise molested) 90-95 4runners are coil sprung (agian, unless otherwise molested)
* there are several "oem" gear ratios available.. make sure you get the correct one to match your existing ratio when pulling one from the J-yard... otherwise you'll be back here asking which transfercase you need to pull from said J-yard.
* you can tell the gear ratio by several methods: Color code, VIN code, or simply counting teeth.
* Color code method: toyota painted the Pinion end from the factory:
410: Pink
430: Blue
456: Yellow
4:88: White
VIN code:
410: G292/G294
430: G282/G284
456: G254
488: G144
Counting the Teeth Method
410: 41(r)/10(p)
430: 43(r)/10(p)
456: 41(r)/9(p)
488: 39(r)/8(p)
* IF you use *Factory* 4.88 gears, you are _UNABLE_ to regear them later. factory 4.88s use a offset pinion, that only work with that ring/pinion set.
* IF your pinion nut loosened up, you _CANNOT_ just tighten it back up... you have NO way of knowing the pinion depth/backlashing on the gears and will most likey blow them up shortly there after.
Aug 7, 2010 | 01:52 PM
#10
Thread Starter
Registered User
Joined: Aug 2010
Posts: 11
Likes: 0
From: wisconsin
also guys. Please look at my pics and comment? that would be great i wanna know some outsider opinions on it. i got it for 500$ it has 177k miles on it. please let me know if i got a good price and what i should do with it. i have not had it long and would like some aftermarket items on it. brush guard and light bar, things like that. please give me some sites if u know of any.
thanks again guys
u all are a big help
thanks again guys
u all are a big help
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