Best diff for my sierra
#1
15000
Thread Starter
Join Date: Aug 2013
Location: ireland
Posts: 38
Likes: 0
Received 0 Likes
on
0 Posts
Best diff for my sierra
Hi
I've a ford Sierra saff 2000e, it has standard rear diff and would like to know what diff to replace it?
Cosworth 4x4 or cosworth 2wd?
Thanks
I've a ford Sierra saff 2000e, it has standard rear diff and would like to know what diff to replace it?
Cosworth 4x4 or cosworth 2wd?
Thanks
#2
Advanced PassionFord User
iTrader: (1)
I don't think it really makes a difference. The ratios are almost identical (3.64 for 2wd, 3.62 for 4x4) and the lsd works the same on both. The 2wd 7.5" diff is said to be stronger, but I wonder if that really is the case. Normally the planet gears are the first thing to break and I believe those are the same on the 7 and 7.5" diff. Anyway, both 7 and 7.5" diff will easily cope with the power.
So in the end it depends a bit on what you currently have. The 7" 4x4 diff is probably the easiest fit, as the driveshafts have the same PCD on the flange as standard Sierras with rear disc brakes, while the 2wd cosworth flanges are bigger and require the 2wd driveshafts to go with the diff.
So in the end it depends a bit on what you currently have. The 7" 4x4 diff is probably the easiest fit, as the driveshafts have the same PCD on the flange as standard Sierras with rear disc brakes, while the 2wd cosworth flanges are bigger and require the 2wd driveshafts to go with the diff.
#7
Trending Topics
#8
OCD Victim
When ordering new on 2000e models before Jan 1990, if you did not specify the ABS option then you got 240mm vented front discs and standard drums on the back. After Jan 1990, all dohc models had discs all round and 260mm front discs as standard. I have a June 1989 2000e on the drive that came with exactly that. The rear discs will be 253mm standard or 273mm if Cosworth. Check your fronts as you do not want bigger rear discs than front
To the op, your axle will be a 7.5" diff and subframe. If going to a 7" diff, you will need either spacers and the correct bolts or a whole axle. The lsd did can fit with drum shafts, but they do need modding to fit.
The standard servo and master will be designed for drums, so would advise swapping to the larger master and servo as well.
To the op, your axle will be a 7.5" diff and subframe. If going to a 7" diff, you will need either spacers and the correct bolts or a whole axle. The lsd did can fit with drum shafts, but they do need modding to fit.
The standard servo and master will be designed for drums, so would advise swapping to the larger master and servo as well.
Thread
Thread Starter
Forum
Replies
Last Post
chowfornow
Ford Non RS / XR / ST parts for sale.
14
05-01-2019 09:01 PM
SMILER258
Restorations, Rebuilds & Projects.
36
28-09-2015 09:04 AM