|
|
|
|
|
#16
07-11-2010, 10:51 AM
|
||||
|
||||
|
Sorry the diff in your car will not work. You could swap in a larger diff from another car though and put limited slip in that. See if the subframe is the same as the c43 subframe. I have found that several different differentials will fit in my car from newer cars. Such as the w220 case. Then it is just finding the right
half axles. Beware thought this could lead down the road of custom half axles and a different or custom driveshaft. I have looked into this as a possibility if my differential can survive the future. 
|
|
#17
07-12-2010, 07:45 PM
|
|||
|
|||
|
Quote:
Quote:
Thanks!,I hoping to get her back on the rollers in the next few months to see how the new compressor wheel,new bypass,new exhaust and idle control tunes up...im getting alittle ichy after 8 months off the road. What is the 202.085? Im pretty sure they would not have changed the rear sub frame on the C43,i will chase up which diff it uses and get back to you!. Cheers, Paul
|
|
#18
07-13-2010, 11:24 PM
|
|||
|
|||
|
Ah ok its the 202 with 111.975 engine ,yes i have the 202.085!.
Spoke to my parts guys today it seems the C43 shares the exact same part numer for the rear sub frame so i would assume the diffs are interchangable in terms of case mounting.That would mean there are half shaft availible if there any different,not sure about the drive shaft though i would think its different to my manual's one. The question is,if i went with a bigger case to run the quaife would i still be able to use a ratio close to my 3.46?....i dont really want to go any longer as i hardly use 5th as it is,even on the open road... Cheers, Paul
|
|
#19
07-14-2010, 01:20 AM
|
||||
|
||||
|
None of the quaife units are set up for this high of a ratio. I spoke to one of the engineers at Richmond Gear and asked about using a spacer for this exact situation. He said he has seen some pretty high hp cars use spacers. You would have to custom make it though with near zero run-out. I presume this would not be a big issue for you though considering your other fabrications.
The big question is what differential to use. The axles are not as big of an issue as these can be custom made using stock ones. The width is likely to be the only issue. I use the same socket and nut to hold almost all of them on so the diameter at the splines should not be an issue. You could also always use the inner joint from the donor car and the outer joint from your car if necessary and make the shaft fit both. I would check the w220 case for fit in your car. This would be a large 210mm diff and the qdf7v fits and a little known qdf8v for higher ratios fits. I do not know what ration but definitely a higher one.
|
|
#20
07-14-2010, 11:13 PM
|
|||
|
|||
|
Yes we could make spacers for sure!
Iv been through a few threads on benzworld etc trying to get my head around a couple of things im confused about...people loosely use the term 124 ,which im guessing is a referal to W124 chassis...where as my diff housing has a part # R124... which is not used in the W124....as far as i know,correct me if im wrong??..... I called into the parts guys today and had a look at Diffs from the W201(tiny) W202(medium) and V8 W210(Massive)...my W202 R124 diff was the middle sized diff.. does this make it the 185mm? or is it larger than this?
|
|
#21
07-14-2010, 11:56 PM
|
|||
|
|||
|
Ahhh just found it...16V LSD uses my case(R124) where as 190 open uses the smaller case!
|
|
#22
07-16-2010, 12:03 AM
|
|||
|
|||
|
Did alittle more searching and found the W203 C240 uses a Part #210 case with a 3.67 ratio,the diff looks bigger than my 124 so im just guessing its the 210mm crown gear!. Also according to the mercedes parts listings the rear cover of the CLK430 should bolt upto this #210 case and allow it to be bolted to the W202(seeing as the W208 uses the same rear sub frame)
Then i guess its just a matter of spacers and the correct lsd?.. cheers, paul
|
|
#23
07-16-2010, 01:33 AM
|
||||
|
||||
|
Before you get too nuts, check the case number in the epc and cross reference it. To see what other carriers it has. The only 210 case I know of that might fit the qdf5v is the e430, e55 case. It may be in other cars like the clk430 as well.
If it directly crosses over then it is simply making a spacer although that might be pretty thick for 3.67 gears. That would probably be 8mm thick or more.
|
|
#24
07-19-2010, 11:55 PM
|
|||
|
|||
|
Good call,Wish i had an international copy of the EPC,I tried doing it the cheap way and accumulated 51 infectections before i could hit the shutdown button.
I did a brief check with my parts guys: My 3.46 diff: 124 case,124 carrier. C43 : 210 case ,202 carrier. W203 C240 with 3.67: 210 case with 202 carrier(if i recall correctly) CLK55: 220 case ,220 carrier So it looks like i need to run the 202 or 124 carrier to be able to run the 3.46/3.67 ratios,i have been refered from Quaife to "KEVIN BIRD GARAGES LTD" still waiting on a responce.
|
|
#25
07-20-2010, 10:51 AM
|
||||
|
||||
|
You should be able to get a worldwide copy of the EPC via eBay, I haven't heard of anyone getting viruses from those (yet). For folks in the USA you can get an online subscription from MB for cheap (need a US credit card though).
I never got a reply from Bird's Garage either... I had to find a different distributor. Bird's is a BMW specialist, maybe they don't do Mercedes.  WhippleM104 can get you one if you have trouble finding a distributor, btw.
|
|
#26
07-20-2010, 08:01 PM
|
|||
|
|||
|
I did try to get a copy via ebay a few years back...he made me send $20usd cash only...which of course disappered in the mail,he had a good rating on ebay too.
I got a responce from Kevin at Bird's(Quaife UK say they deal with mercedes), they seem to think the QDF28V is what i need. I have sent him more info to confirm. they have quoted me $932 pounds + shipping. thats pretty steep.
|
|
#27
07-20-2010, 08:44 PM
|
||||
|
||||
|
QDF28V sounds like a typo. There is no QDF28V that I know of, and it is not anywhere on Quaife's website. I think he means QDF8V, and I'm nearly certain that will NOT fit your 124 carrier, as the Quaife is a 210mm diff and your 124 is most likely a 185mm diff. Oddly, the QDF8V does not show in Quaife's online catalog at the moment. There is no Quaife available - period - for 185mm diffs, unless you have one custom built ($$$$$).
The price from Bird's is a ripoff. You can buy direct from Quaife's website for £775 GBP plus £143 GPB shipping to Australia, total of £918 which is less than Bird's wants just for the diff! Sounds like Bird's is not particularly interested in dealing with MB fitments overseas. Spec sheets are here, btw... note in the lower right corner the cross-reference to the OE MB part numbers. Two are 220- numbers, one is 215-, and one is 126-. http://www.w124performance.com/images/W124_diffs/210mm/Quaife/Quaife_QDF5V.pdf http://www.w124performance.com/images/W124_diffs/210mm/Quaife/Quaife_QDF7V.pdf http://www.w124performance.com/images/W124_diffs/210mm/Quaife/Quaife_QDF8V.pdf http://www.w124performance.com/images/W124_diffs/210mm/Quaife/Quaife_QDF9V.pdf 
|
|
#28
07-20-2010, 10:19 PM
|
|||
|
|||
|
Would like to think your wrong,however i get the feeling your not
 If so then the only option is to find the large carrier with the right ratio...which i must say doesnt look too promising. Thanks for the info,i should have a final confirmation by tonight,positive thinking says the 28V is going to be a new model...just produced this week for the 124 diff 
|
|
#29
07-21-2010, 01:34 AM
|
||||
|
||||
|
The only diff with ratios above a 3.27 that I have seen in the U.S. is the #129 #140 case with the diesel and the l6 sl320 that have 210mm ring gears. I have seen 3.43 I think and 3.73. This would require a huge spacer though. This may be more than acceptable. The only differential I have seen is the qdf8v which is not normally listed anywhere that was designed to car higher gears. It is exactly the same as the qdf7v except were the flange is for higher ratios. I have seen that in other countries that the #220 case has high ratios for the smaller engines. This may be the way to go.
As far as getting any units I can help you with anything that you need. Give me a shout and we can work out the details. Last edited by whipplem104; 07-21-2010 at 01:37 AM. Reason: forgot
|
|
#30
07-21-2010, 04:50 AM
|
|||
|
|||
|
Birds replied,they have not seen my housing with that ratio before so have asked for dimensions on the carrier...specifically L4..however with the qdf8v being the likely candidate in mind and the fact your saying it is identical to the 7v,I would say L4 is the least of my problems. I will head back to my parts guys for a descent look at the larger diff ratios through there epc. Interesting you mention the diesel ratios/I6 ,my parts guy suggested looking through them and the larger 6 cylinders too however we didn't search them all.
To be sure,I think it may pay for me to pull the diff out and have a measure up!? Thanks,once we have a clear path we can look at the most cost effect way to approach it! Cheers, Paul
|
 |
| Bookmarks |
|
|
Linear Mode
