LSD Options
Conversion kits
https://racingdiffs.com/collections/lsd-conversion-sets/products/peugeot-citroen-progressive-lsd-conversion-set?variant=33548650545287
https://www.tractionconcepts.com/1984-1993-Peugeot-205-GTI-LSD-Kit-p/tcxpe3821.htm
https://phantomgrip.com/shop/peugeot-limited-slip-lsd-conversion-kit/1984-1993-peugeot-205-gti/
Two lumps of metal and some springs. Even if they were a good idea in general they would be a bad idea in a BE box due to the weakness of the pin holding the standard diff together. Removing that weakness is a big secondary benefit to fitting an LSD to a BE box so an LSD that retains it probably wont last long under the extra stress.1
Quaife ATB
https://shop.quaife.co.uk/shop/differentials/quaife-atb-differentials/qdf3h/
VAL Racing
http://partslada.com/Front-Rear%20Axle-Other/lsd-limited-slip-differential-for-peugeot-citroen-be-3-be-4-front-hard-locking-val-racing
https://www.val-racing.ru/differentsial-povyshennogo-treniya-dlya-peredneprivodnykh-avtomobiley-peugeot-i-citroen.-stepen-blokirovaniya-legkaya
'Plate'-type differential
Lada Samara
A plate LSD from Lada Samara fits in be3 gearbox.2 There are couple of more issues, including the absence of a speedo drive.
- Splines match.
- Diff bearing inner diameter is 35mm (Lada Samara) vs 38 mm (BE3). This can be fixed by having couple of bushings made with an inner diameter a fraction under 35 mm, heated and then installed.
- It is also necessary to use a use thick washer under right side diff bearing.
- Final drive and diff must be machined to center the final drive and to bring it to the right position; new holes must be drilled into FD.
Samara v BE3
http://partslada.com/Front-Rear%20Axle-Other/lsd-differential-lock-avt-lada-2108-2113-2190-1118-2170-granta-vesta-screw
http://partslada.com/Front-Rear%20Axle-Other/lsd-differential-lock-lada-2108-2113-2190-1118-2170-granta-disc-avt
https://ladapower.com/catalog/lada-2108-09-13-14-15/front-axle-samara/lada-samara-torsen-differential-val-racing-detail
https://www.val-racing.ru/differentsial-povyshennogo-treniya-dlya-lada-4kh4-i-shevrole-niva-24-shlitsa-peredniy-reduktor.stepen-blokirovaniya-srednyaya
Plate?: https://ladamoscow.com/lsd-disc-differential-self-block-lada-2108-2115-samara-1118-2170-2190
Torsen?: https://ladamoscow.com/lsd-screw-torsen-differential-self-block-lada-2108-2115-samara-1118-2170-2190