RSS feeds available Dont miss the latest news Cortina news feed Classified adds feed .............................................. July 21st New items available for your MK1 check out the price list for updates ............................................ June 17th Two new cars added to drag Cortina page. Zetec & SR20 powered. HERE ............................................ May 30th Work progressing on our 63 GT restoration. Mk2 Cortina replacement sills available soon. ............................................ Visit the Classifieds! Free to list - Free to sell For small Ford owners Register, and you can place your own adds. Click here! ............................................. April 29th MK1 Cortina strut braces ready to order. Please go Here for info ............................................ March 19th MK2 Cortina Inner and outer Tie rods now available .............................................. March 3rd AOMC Classic car show pictures ready for viewing in the gallery ............................................ February 14th Hanging rock images in the gallery Ballarat hotrod drag drags also in the gallery YouTube video of both events also ............................................ February New! version of alloy rocker covers available Here ............................................... February 7th Small Ford Sunday images ready for viewing in the gallery You tube videos on the cortina-mk1 channel ............................................... October 19th New design strut tops No change over required. See details here .............................................. August 26 Rust repair sill sections for MK1 cortinas. Go here for details ............................................... August 19 New albums in the gallery Classic Ford show UK and images from Norway cortina club AGM ............................................... August 16 Updates made thoughout the site. Also new pages to our new project V8 here. ............................................... May 26 Images from the Small Ford Alliance drag day at Heathcote park here and video here We broke the gearbox on start line ............................................... April 10 Media page updated Small Ford alliance Dyno day Videos HERE and images in the gallery See our dyno printout HERE .............................................. February 15 New! All Ford Day images in the gallery Plus video HERE ............................................... February 10 Our 2 door deluxe featured in 'Street Fords' HERE! .................................................... January 2nd New tech guide to fitting Datsun crankshafts into Kent blocks HERE ! ................................................

The rear diff
The extra horsepower the 4 door produces made it difficult for the standard GT diff and GT axles to keep up with the task. We had to make a decision on what the alternatives were around.

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The center options
The Borg Warner 'tin plate' was considered as it has good strong axles and is fitted to many cars. E.G.: Falcons, Sigma's and Commodore just to name a few. So parts and ratios could be found fairly easily, a drawback though, was that it is not a 'drop in' center. It is a Salisbury type diff, not the easiest or quickest type of diff to do a center change.

Next to consider was the Ford 9 inch. The 9 inch has been a common conversion in just about any car that has ever made more horsepower than the manufacturer intended. The plus's with this diff is that there are many ratios available, many aftermarket parts and modifications that can be made to it. It also has a more 'user' friendly type of 'drop in' center. One major drawback is the weight. But taking this all into consideration we went with 9 inch as we already have other ratios to use if we choose. This LSD diff is fitted with a Harrop alloy carrier, steel hat and pinion support. Fitting this diff meant we didn't have to worry about rear end failure so much.

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The axles
We had fitted 28 spline axles to the diff. They were fine up until they failed on the start line at Calder park Friday night street drag back February 2006. After that failure we had no choice but to fit 31 spline custom axles. We choose the only Australian maker of Hi Performance axles now GDS in Geelong.

The rear housing and center was fabricated by local diff guru Dennis Smith. Much time and expertise was put into ensuring correct alignment and tolerances We thank him for his patience and help with our projects over the years.

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Salisbury diff
This a good idea and good conversion for a MK1s. Changing to a Commodore borg warner salisbury diff using Commodore disk brakes. We have used this diff on several conversions we have done. Fitted with 4 pinion LSD 4.1 center.

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The car
Engine
Suspension
Brakes
Engine Management

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