GTEPETE Posted August 9, 2020 Share Posted August 9, 2020 People have been hinting these LSD axles were based on Manta/Chevette axles...not so sure???? https://www.ebay.co.uk/itm/ISUZU-PIAZZA-TURBO-HBL-REAR-AXLE-WITH-LSD/174385160803?hash=item289a2a6263:g:1qsAAOSwmkBfLrX~ Quote Link to comment Share on other sites More sharing options...
GTEPETE Posted August 9, 2020 Author Share Posted August 9, 2020 More like it.... https://www.google.com/search?q=ISUZU+PIAZZA+TURBO+AXLE+WITH+LSD&tbm=isch&ved=2ahUKEwiUt7DyxI7rAhVF4oUKHTByBCIQ2-cCegQIABAA&oq=ISUZU+PIAZZA+TURBO+AXLE+WITH+LSD&gs_lcp=CgNpbWcQDFDbM1jHRGDETmgAcAB4AIABNIgBNJIBATGYAQCgAQGqAQtnd3Mtd2l6LWltZ7ABAMABAQ&sclient=img&ei=zSMwX9ScFcXElwSw5JGQAg&bih=920&biw=1920&rlz=1C1OKWM_enGB786GB786#imgrc=Cflu5eF1sic1TM GTJIM (R.I.P.) Old Opeler Joined Jun 15, 2003 5,564 Posts #5 • Mar 12, 2008 (Edited) Non-Turbo Yep - the Imulse diff to use - or get gear parts from - was used right up to 1989 in RWD Non-Turbo Impulses and has a torque tube that looks very like Opel diffs (mainly because they were made in the same GM factory and supplied to both Isuzu and Opel - plus early years of Vegas, Astres and Chevettes - but with different lengths of driveshafts/torque tubes and disc brakes in Isuzu's case). Turbo Impulses with auto trans used the same type of diff till about mid-1987 when it was found the 180ps from the turbo motor shredded them (thus the limit on hp that they can sustain - about 150/160 hp). The opel torque tube bolts on to the Impulse housing and the Opel driveshaft slides on to the Isuzu barrel spline on the front of the pinion - so as long as the wider Isuzu diff fits your chasis and disc brakes are allowed in your racing class - the whole rest of the Impulse diff can be used in a Manta with a little spring cup and location bar alteration ... If you can find an early Vega or Astre or Chevette LSD unit (Aurburn made one!) that will fit too! Pic of a NOS one that was on EBay a couple of years ago attached below. BTW: The Impulse front suspension is also very similar to the Manta/Ascona/1900 front suspension - and as an aside ... the Impulse front spindle can be fitted to the GT/Kadett front suspension with a 10mm spacer above the Opel top ball joint; with the Opel lower ball joint bolting up with the same taper as the Impulse one .... nice, light 246mm vented discs and Isuzu calipers on GTs and Kadetts! Attachments Vega-Astra 6 3-4 Posi 001.jpg 29.1 KBViews: 54 1 Quote Link to comment Share on other sites More sharing options...
Jessopia74 Posted August 9, 2020 Share Posted August 9, 2020 (edited) 1st looks like the piazza axle. But for LSD it must be from a manual car. They are also a little narrower iirc 56”. However I think it is the diff compatibility That was appealing Edited August 9, 2020 by Jessopia74 Quote Link to comment Share on other sites More sharing options...
GTEPETE Posted August 10, 2020 Author Share Posted August 10, 2020 When I was in Oz in late 90's I saw a lot of small RWD Kadetts Coupes driving around Adelaide. They looked brand new, as had no rust, but were fitted with Isuzu egines..... Quote Link to comment Share on other sites More sharing options...
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