105 diff size

Sicanotony · July 01, 2015, 08:57:44 PM

I recently bought a pair of bearings from England to freshen up the diff centre. However these bearings are somewhat smaller those already in the diff.
My question: is there a small size diff centre that takes smaller bearings.

Colin Byrne · July 02, 2015, 07:57:36 AM

the 2L LSD diffs have different bearings than the non LSD diffs, is yours an LSD type?

LaStregaNera · July 02, 2015, 08:52:04 AM

The 1750 and earlier diffs are smaller than the 2l diffs - are there threaded retainers on the axles for the wheel bearings?

Sicanotony · July 02, 2015, 03:47:16 PM

Yes I have threaded retainers on the axles. It appears I have a 2L diff in my series 2 1750.

LaStregaNera · July 02, 2015, 04:02:08 PM

Threaded retainers is the early small diff - I don't believe early axles fit the 2l diff - so it's probably the correct unit for your 1750.
2l cars had shrink on retainers.

What's the Internal Diameter of your bearings? 38mm is the 1300/1600/1750 inner bearings, 41.2mm ID is 2l LSD.

Sicanotony · July 02, 2015, 05:23:18 PM

Thanks for the info "La Strega". I appreciate your help.
Journals on the diff centre are 38 mm. However my bearings (SKF BR30207) which I bought as diff bearings measure 35mm. I think I have been diddled by seller. See link.
http://www.ebay.com/itm/SKF-BR30207-Differential-Bearing-/191099785003
No worries I will order new ones
Thanks again

LaStregaNera · July 03, 2015, 11:53:12 AM

This is why i try to deal with Alfa people (Avanti/Classic Alfa etc) rather than random ebay sellers - if it does wind up being the wrong part, they'll sort it out...