Originally Posted by martin-reyland
Originally Posted by a.k.a
Originally Posted by martin-reyland
Originally Posted by a.k.a
An alternative to changing the step offs in the box is to use the front 3.9 diff from a 2 litre DOHC 4x4
As long as you match the diffs front and rear you dont need to touch the box
People say its not a strong front diff but then again neither is the 3.6 cosworth version
the 3.9 front diff is known for being very weak hence the use of the standard ratio front diff and step off gears
yes I agree for high power/heavy footed applications, but for people using standard 4x4 boxes they are a cheap and readily available alternative - I know of quite a few people running both front and rear sets of 3.9 diffs from the 2 litre dohc in 4x4 cosworths with moderate power increases who have had no problem with them, and if they do go they are easy and cheap to replace.
edited
meant to also say a lot of the problems are caused when people do not use the 2 proper extra mounting brackets that only came with the cosworth front diff when they use the 3.9 front diff which then allows the casing to flex and crack
first you say that you agree that its not suitable for high power cars and then you mention that you know a few people with moderate power increases using them... were we talking about moderate power increases? nope.
Its called being helpful, based on first hand experience on this matter
A lot of people read these threads and many of them pick up advice related to the topic even if there own vehicles may not be to the same spec - not everyone has a bottomless pit budget and some may have wanted to go the 3.9 route without having to spend big bucks, as they dont have big hp engines which need the stronger set ups.