SD1 rear axel diff options?

chodjinn · Post by **chodjinn** » Thu Dec 13, 2012 10:00 am

Hi, I have an opportunity to buy a full complete SD1 rear axel for a good price, it's from a 2.6 Manual, is it likely to have the same diff ratio as the V8?

And would it matter so much in my MGB?

DaveEFI · Post by **DaveEFI** » Thu Dec 13, 2012 11:04 am

2600 manual 3.45:1
2600 auto 3.08:1
3500 manual and auto 3.08:1
EFI and Vitesse auto 2.85:1

chodjinn · Post by **chodjinn** » Thu Dec 13, 2012 11:28 am

DaveEFI wrote:2600 manual 3.45:1
2600 auto 3.08:1
3500 manual and auto 3.08:1
EFI and Vitesse auto 2.85:1

Wow thanks for that! Just read up on diff ratios, might be worth a punt to get the higher ratios and fit it into my shortened axel. £100 for a full SD1 axel seems pretty good to me!

DaveEFI · Post by **DaveEFI** » Thu Dec 13, 2012 1:46 pm

There is also a 3.9:1 fitted to the 2000 manual. The auto has a 3.45:1.

The 2.85:1 EFI auto is comparatively rare and usually costs more.

j.johnson23 · Post by **j.johnson23** » Fri Dec 21, 2012 8:20 pm

Don`t forget that TR7 5speed axles have the same inner workings as the SD1.