STD Tuning Drivetrain Problem with Shaft length [716.6XX + 320 E Differential]

Problem with Shaft length [716.6XX + 320 E Differential]

Problem with Shaft length [716.6XX + 320 E Differential]

 
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swatmugga
GT2256V

130
08-25-2014, 10:02 AM #1
Hi!

I have a W124 300D Turbo with 716.6XX gearbox.

Until today i used the differential from 300D (non Turbo) with front shaft of the W210 (84cm long) and rear shaft from 300D (non Turbo) (96cm long)

Today i wanted to build in the 320E Differential because it has a longer transmission and is more robust.

The big differential is about 3cm longer than the 300D one. So my shafts are to long!

I also have the rear shaft from 320E here but its to short it only 89cm long.
Is there any shaft i can use with about 93 cm?
swatmugga
08-25-2014, 10:02 AM #1

Hi!

I have a W124 300D Turbo with 716.6XX gearbox.

Until today i used the differential from 300D (non Turbo) with front shaft of the W210 (84cm long) and rear shaft from 300D (non Turbo) (96cm long)

Today i wanted to build in the 320E Differential because it has a longer transmission and is more robust.

The big differential is about 3cm longer than the 300D one. So my shafts are to long!

I also have the rear shaft from 320E here but its to short it only 89cm long.
Is there any shaft i can use with about 93 cm?

barrote
Superturbo

1,627
08-25-2014, 03:28 PM #2
e 320 diff why? u fear to brake the 300d diff ? or is a question of gears?

FD,
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barrote
08-25-2014, 03:28 PM #2

e 320 diff why? u fear to brake the 300d diff ? or is a question of gears?


FD,
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swatmugga
GT2256V

130
08-25-2014, 04:22 PM #3
The 300D diff has a lot of play. Its trans. 1:3,7

The 320 diff is in very good condition and is trans. 1:3,07 a lot better.
I realy hope there is a shaft what will fit on my setup...I just bought it.


I like to get around 300 HP from my engine so there should be a robust differential.

Do you think the middle differential with 90mm connection will hold the power?
The 320E has 110mm
swatmugga
08-25-2014, 04:22 PM #3

The 300D diff has a lot of play. Its trans. 1:3,7

The 320 diff is in very good condition and is trans. 1:3,07 a lot better.
I realy hope there is a shaft what will fit on my setup...I just bought it.


I like to get around 300 HP from my engine so there should be a robust differential.

Do you think the middle differential with 90mm connection will hold the power?
The 320E has 110mm

barrote
Superturbo

1,627
08-26-2014, 03:22 AM #4
I think, this merc diff will hold enough power.
having play does not mean nothing, the bearings are the issue, when they start to sing, u can change them, probably is cheaper.
I made a mod in my 124, but i got a diff from a w124 300td, 3 point fixing big case with gear ratio of 2.87.
2.87 is a good ratio, i had to swap wheel transmission (axels) and the power transmission, actually i cut and welded mine(now it vibrates i haven´t balanced it), but i´ve been in a junk yard and there is a lot of sises that fit the 124.
another issue is the rubber dumping plate which comes in dif sizes as well.
Once u have the so desired 300HP, maybe your clutch and gear box will be the weakest part.
I´m after 300HP in a 605, now i´m at 150 Sad, in future it will be more agressive.
regards

FD,
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barrote
08-26-2014, 03:22 AM #4

I think, this merc diff will hold enough power.
having play does not mean nothing, the bearings are the issue, when they start to sing, u can change them, probably is cheaper.
I made a mod in my 124, but i got a diff from a w124 300td, 3 point fixing big case with gear ratio of 2.87.
2.87 is a good ratio, i had to swap wheel transmission (axels) and the power transmission, actually i cut and welded mine(now it vibrates i haven´t balanced it), but i´ve been in a junk yard and there is a lot of sises that fit the 124.
another issue is the rubber dumping plate which comes in dif sizes as well.
Once u have the so desired 300HP, maybe your clutch and gear box will be the weakest part.
I´m after 300HP in a 605, now i´m at 150 Sad, in future it will be more agressive.
regards


FD,
Powered by tractor fuel

08-26-2014, 04:27 AM #5
I don't think the 90mm flex disc is a good idea! Especially not with long gearing. Even the stock turbo has got a 110mm flex disc...

I had my prop shaft shortened, remanufactured (uni-joint) and balanced. Cost was about 220€ - not much, considering you get a fitting "as good as new" prop shaft. No vibration, no droning - it's worth it!

I would have to take a measurement, but could your 320 rear shaft be from a Coupé? Where are you from?

____________________________________

'88 300CD Turbo Coupé - OM603
DiseaselWeasel
08-26-2014, 04:27 AM #5

I don't think the 90mm flex disc is a good idea! Especially not with long gearing. Even the stock turbo has got a 110mm flex disc...

I had my prop shaft shortened, remanufactured (uni-joint) and balanced. Cost was about 220€ - not much, considering you get a fitting "as good as new" prop shaft. No vibration, no droning - it's worth it!

I would have to take a measurement, but could your 320 rear shaft be from a Coupé? Where are you from?


____________________________________

'88 300CD Turbo Coupé - OM603

swatmugga
GT2256V

130
08-26-2014, 04:55 AM #6
Hi barrote!

The with the 716 Gearbox and 220CDI clutch the Power shoulnd be the Problem.

The Play in the differential is very annoying... Its not fun to drive that.

I will try to find a fittin shaft.... If it dont work im going to buy a middle diff like you.

@Dieselweasel im from germany! I dont know where is my actually shaft from.
This post was last modified: 08-26-2014, 04:57 AM by swatmugga.
swatmugga
08-26-2014, 04:55 AM #6

Hi barrote!

The with the 716 Gearbox and 220CDI clutch the Power shoulnd be the Problem.

The Play in the differential is very annoying... Its not fun to drive that.

I will try to find a fittin shaft.... If it dont work im going to buy a middle diff like you.

@Dieselweasel im from germany! I dont know where is my actually shaft from.

swatmugga
GT2256V

130
08-26-2014, 09:01 AM #7
I just noticed that my differential has a 100mm fex disk!

Is there any Shaft that now could fit? I think about 250D and 300D Turbo shafts.
swatmugga
08-26-2014, 09:01 AM #7

I just noticed that my differential has a 100mm fex disk!

Is there any Shaft that now could fit? I think about 250D and 300D Turbo shafts.

 
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