Those of you who know me will not be surprised to see what I am trying to do. I have infomation on using a transit diff with the escort crown wheel and pinion. I have details of what mods are required etc .However i am not 100% which transit diff is used. I believe it comes out of the back of the axle,and is from the early SWB transit.Can anybody help with more detail or parts?
Has anybody got a fack diff for sale?
Yes, well, err. Some years ago I went down this same route and collected all the parts from a scrap yard to build a transit diff into an escort axle. I cannot answer any of your question BUT - the sole reason that I did not complete the conversion was the weight. The transit diff is almost twice the weight of an escort diff. My concern was the dramatic increase I would made to the "unsprung weight". The effect of additional weight to the axle will reduce the time the wheels stay in contact with the ground while traversing rough sections.(i.e. you increase the upward force of the axle relative to downward force of the cars body weight). Hope this is food for thought.
ReplyDeleteRegards Jonathan
I believe you can use the diff from the transitwith the escort crown wheel and casing etc. I would have thought this would add only a few pounds to the weight. did you consider using the whole axle?
ReplyDeleteYes I recall that the banjo type transit diff unit had the same stud configeration as the escort axle and that it was to be fitted directly into it (there by keeping the axle standard). I was going to use the diff as it came without any changes except the half shaft size. The transit diff drives large/longer half shafts.Making a halfshaft fit the escort axle tube and the transit diff was the only problem. Coming back to my comment re weight it was the weight differential between an escort diff compared to a transit diff unit - they are poles apart.
ReplyDeleteThank you for the info.I will continue with this idea.
ReplyDeleteI have also now got a fack diff. thank you those concerned.
Just to add some confusion to all thats allready been said. I have a transit diff fitted to my Troll. I use what I think is called an English Ford axel, the actual diff unit fits into the front of the diff casing. The transit diff uses Escort CW&P with a very low ratio. My diff has done many seasons of work and at the instructions of the guy who built it I only use Castrol EP90 oil BUT I do suck it all out and change it once a year. I managed to buy a new Fack diff a few years back 'just in case' but have never had to fit it. The only problem I have is the CW&P is now wearing and is noisy and it is difficult to find good quality replacements. Stuart Harrold
ReplyDeleteThanks for the note.i also have found a facf diff.As mentioned there is a waiting list for the next batch,however julian cannot say when thay will happen.I have yet to try it but I have all the required info if anybody else has run out of std diffs and reguires something a bit stronger.
ReplyDeleteWithout wishing to to state what everyone knows but when you have beefed up the weakest link (i.e. the diff in this case) the next weakest link lets go.This could be a halfshaft it you put a shaft in the opposite side to the way it has previously be fitted. The opposite twisting of the shaft can cause it to snap off in the diff. Having had this twice and not paying any attention to which side which shaft belongs I now keep them marked as left and right fitting.
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