2.5X Rear differentials
#1
Honda-Tech Member
Thread Starter
The rear differential discussion // 2.5X Rear differentials
Im doing some search on solutions to ditch the now expensive wagowan rear diff since it allready has wrong ratio and id like to skip it.
I refuse to believe it isnt anything close to 2.53, stronger and/or cheaper from theCRV: edit: Wagovan
So far:
- 2002 Jaguar X typer ratio 2.53
- xxx DANA 35 rear differential ratio 2.53
- "BMW 2.56" various models many many results just google BMW 2.56
- 2014 Kia sorento 2.0 had 2.53 and a electric valve to controll it. (NEEDS MORE RESEARCH FOR THE GEAR RATIO)
I refuse to believe it isnt anything close to 2.53, stronger and/or cheaper from the
So far:
- 2002 Jaguar X typer ratio 2.53
- xxx DANA 35 rear differential ratio 2.53
- "BMW 2.56" various models many many results just google BMW 2.56
- 2014 Kia sorento 2.0 had 2.53 and a electric valve to controll it. (NEEDS MORE RESEARCH FOR THE GEAR RATIO)
Last edited by Balor_Gr; 01-20-2019 at 12:22 PM.
#3
#4
Honda-Tech Member
Re: 2.5X Rear differentials
From what I've seen the crv and element difs don't seem to transfer power anywhere near as close to the wagon rear diff. The cars I've riden in with that rear end felt like a fwd car when spinning. I'm surprised someone hasn't came out with a lock up for them
#7
Re: 2.5X Rear differentials
Full time lockup leads to binding like a true transfer case truck 4x4. Also leads to ripping the PTO off the trans in the Honda world. Need something to slip to allow for the different wheel speeds.
Bisi visited Hoonigans with his K powered AWD wagon running the dual pump rear end with above mentioned upgrades. He claims it works well on his 900hp setup.
Bonus with the dual pump is the pressure release solenoid to electronically decouple the rear end. I believe this was done for ABS reasons.
Bisi visited Hoonigans with his K powered AWD wagon running the dual pump rear end with above mentioned upgrades. He claims it works well on his 900hp setup.
Bonus with the dual pump is the pressure release solenoid to electronically decouple the rear end. I believe this was done for ABS reasons.
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#11
Re: 2.5X Rear differentials
The 2012 model element rear differential changed and I haven't found any information whether they are compatible with the older models. As far as I know the 08-11 element diff is the best option if using a 97-01 crv rear. I figure finding these would be much easier than a wagovan diff.
https://www.crvownersclub.com/forums...fo-inside.html
https://www.crvownersclub.com/forums...fo-inside.html
#12
Re: 2.5X Rear differentials
That link you posted mentioned AT vs MT final drives. Not finding rear end ring gear part numbers to compare. I think the rear ends are all the same ratio with the ring gear in the transmission dictating the final drive ratio.
Makes sense they would all be the same rear ratio if they are all driven off the front differential case through a PTO.
Makes sense they would all be the same rear ratio if they are all driven off the front differential case through a PTO.
#15
Honda-Tech Member
Re: 2.5X Rear differentials
Just to clarify are the angle drives on b series awd transmissions the same from auto to manual? I've heard people say they are different but I've heard they are the same.
#16
Re: 2.5X Rear differentials
Looked up a 2000 CR-V
MT PTO: 29000-PEP-000
AT PTO: 29000-PDM-000
MT PTO Hypoid gear set: 29210-PBX-000
AT PTO Hypoid gear set: 29210-PBX-000
The PTO input shafts are a completely different style. AT is a shaft with a gear cut into the end of it. MT is a splined shaft with a removable gear. No idea what the tooth count is between them for a total PTO ratio.
The whole assembly is not the same.
MT PTO: 29000-PEP-000
AT PTO: 29000-PDM-000
MT PTO Hypoid gear set: 29210-PBX-000
AT PTO Hypoid gear set: 29210-PBX-000
The PTO input shafts are a completely different style. AT is a shaft with a gear cut into the end of it. MT is a splined shaft with a removable gear. No idea what the tooth count is between them for a total PTO ratio.
The whole assembly is not the same.
Last edited by Ryanthegreat1; 01-19-2019 at 05:38 PM.
#18
Re: 2.5X Rear differentials
I’m curious about all this my self. I’ve read a lot about binding and what not. I don’t really care about awd. I want to slide my Honda sideways. To do awd from what I understand you need a Viscous Coupler to make up for the front and back variations in speed of the wheels. Now if I just put cv studs in the front no axle. And run a drive shaft with no VC to the bakc wheels would it not be just like a normal RWD car. If I’m not using the front 2 wheels for any force other than turning will I still have binding? Or will it act like any other RWD car (ie 240sx). From there could the rear diff be welded or one of those spring square things that lock up the diff be used and just have the normal chirping of the tires when you turn like again 240sx with a welded diff. I’m very curious. Oh and in my research I found a list of Chevy and GM rear diffs and axles many of them 3-2.7 FD.
https://www.drivetrain.com/parts-cat...m-or-chevrolet
https://www.drivetrain.com/parts-cat...m-or-chevrolet