You can fit an early Toyoda T-series diff head, including the LSD unit, in a Datsun H165 housing. T-series diff to 1985 is what is needed. 1985-1987 GTS diff is larger.

Overview

Only the early ae86 83-early85 zenki diffs 24mm axles and same splines as h165 axles.

Grind out center section from 175mm to 177mm to accept the ae86 carrier. (May need to relive part of the internal step where housing meets the rear bowl to allow ae86 towers to clear fully.

Related a dent to clear bearing retaining bolt in rear bowl just to the outer side and above rear filler plug (approx 5mm with a ball pein Hamner).

Insert carrier and then axles to check for binding and straightness.

Center punch the carrier holes transfering the spot to drill then tap on the housing

Re-drill H165 housing for AE86 centre section as now 10 bolts not 8 (9 bolts approx 35 long and one approx 85mm)

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/ss_1969camaro-img600x450-1351832041rp9avd33603.jpg

Use driveshaft adapter ring & machine AE86 companion to match. That's it.

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/typhoon_0001-img600x450-13372225251fvhdp58789.jpg

AE86 DX & SR-5 6.38 ring gear S292: 4.10 2-pinion (Automatic) USA S314: 3.91 4-pinion (5-speed) USA

AE86 GT-S 6.7" ring gear T282: Open T283: optional LSD (USA Only) 4.30 2-pinion T234: optional LSD

tap 10 new holes

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/o0640048012099159841.jpg

Pitch Adapter

propeller shaft pitch adapter

AE86 Flange 46mm(?) spigot 78mm PCD

B120 driveshaft 45 x 54 mm H165 pattern ~38mm spigot adapter: 12cm(?) thick

Modified Flange Type

Drill 2nd pattern on AE86 flange.

AE86 flange is 78mm pcd (~55mm square)

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/typhoon_0001-img600x450-133722252582flzt58789x.jpg

Drilled for smaller H165 pattern:

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/IMGP8872.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/IMGP0478x.jpg

Bolt-Through Spacer Type

Requires more complicated spacer machining

Custom make one, similar to this:

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/348-6919-1.jpg

Threaded Adapter

AE86 side, 78mm PCD, spigot hole ~46mm

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/o0640048012099158869x.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/o0640048012099216389.jpg

Sunny Truck tailshaft side, 45 x 54 mm pattern, spigot ~38mm O.D.

http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/o0640048012099158870x.jpg http://i297.photobucket.com/albums/mm219/ddgonzal/Datsun%201200/Sunny%20Truck/AE86/o0640048012099216387x.jpg

rally1200 Diff Conversion

Club member rally1200 was going to fit a Sprinter diff centre in the H165 housing. But the housing was bent, so he converted the Sprinter axle assembly to fit the 1200.

Album 5785 Album 6235 Album 6236 Album 6237 Album 6238