Just checked my emails and here is my reply from Bernie:


The best options are a Quaife ATB at £685.00+vat or an R&D plate diff at around £1200.00, 400bhp is really pushing a standard uprated diff and we would definitely expect it to fail at some point.


some saving to be done

If I dont lauch my car and just enjoy the midrange etc, will the std diff last?
also what other options r there compared to above, and how much?

 

gripper at approx £1000 +vat

 

cheeRS markk,

anymore for anymore?

 

markk, which bits of the std transmission needs to be supplied when you switch from std to a plated gripper? cwp etc?

 

Matt

When i got mine i just supplied them with a broken diff as they supplied me a new CW&P then they modify the casing and put the Gripper stuff in.AFAICR

 

I think i best start saving! lol didnt get a email back say kinda similar! think i will save some money and see what options i have

 

I ragged tha bsolute tits off my old diff!

Over 60 runs at the pod, six track days (two on slicks) and it never gave up.

I did try my hardest, ands it was whining like my missus, but uprated is the way forward.

 

Deffo Rich!! 3rd Launch at pod and old diff gave up on old spec

 

Sean Bicknell has an ATB for sale with proper CWP.....

 

aint zoo offering a 10incher now?

anyone know what these are like out of curioscity?

 

Jim,

Brom couldn't destroy one, and I have one on the way...........

 

yup Zoo one is proper! bvut overkill for 400bhp? plus u need to custom fit it, so that goes over my head to start with

 

lee, not interested in a atb myself (blame marco and markk lol) but can you define "proper" please

 

ive had this conversion in my car for over 4 years now

and its the dogs bollix !! has a full on plated unit with a large cwp - even bigger than the ford 9"er !!

all you need to supply is the cwp (the best you can find) a good case , and the 1/4 shafts nedd to be slightly modified !!

after that - away ya go - fookin dogs bollox of a diff , i ran the small unit (7" ) in a 2wd with approx 350ftlb of torque on several tarmac rallies with large slix (of course ) never had a problem - should never have sold it

it took me over 12 months to find another suitable unit that i could use the ratio on i wanted , in the end i came a cross the jag conversion ( was approx 8 year old then ) but was in need of a bit of fettling then hey hey !! fookin big diffs !! then before you know it - everyfookers got one !!!

but theres one thing to say about that - if youve got a good thing everyone will want one - if its a bad thing then your on your own with it


i would have had another gripper but i couldnt get the cwp's for the ratio i wanted in the sierra diff !! now i have a few diffs with differant ratio's !!

 

the atb sean has is in a 7" case is it not ?? best left in a 4wd drive car then ??

as for the proper cwp - he will mean its prob been peened and polished

 

sound, cheers mark

next....

ratio's

i dont wish to change from a std 3.64 final drive, i take it this isnt such a problem to source? was your problem that you wanted a shorter ratio for acceleration? e.g. a 4.4 or such

 

got it in one m8!!

i needed a 5.1:1

then a 4.44: , a 4.27:! and a 3.77:1 - all of which i have now !!


all i can recommend m8 is try and find the lowest mileage cwp you can , have it x-rayed , shot peened (stress relieved ) and polished !!

and you should have no problems !!

try and stay away from cossie cwps as most of them WILL have been ragged !! look into the other models

 

how much is the 10 incher then?
What needs doing to fit it?

 

steve scott charged me 1k fitted for my gripper,

not broke it yet! lol

 

cheers again mark

including a "proper" (see above) cwp?