253 conversion.

**ozbox** · 07-07-2010, 07:55 PM

3.08 ratio large 10 bolt from any v8 ute/van or any 1 tonner diff 6 or 8 is a popular ratio and the right diff.your backing plates brakes,cables,lines are all the same so you can use all them..just need a housing and centre with axles..always look inside to check how good they are and to check the ratio as its stamped on the crown wheel..1 tonner diffs have a larger pinnion which meens that you would need the u bolts and a step down universal...im going to do some more technical type articles and post them up and diffs is one i am going to try to explain...:eek:...:Hair:

**abncraig** · 07-07-2010, 10:20 PM

Originally Posted by ozbox

3.08 ratio large 10 bolt from any v8 ute/van or any 1 tonner diff 6 or 8 is a popular ratio and the right diff.your backing plates brakes,cables,lines are all the same so you can use all them..just need a housing and centre with axles..always look inside to check how good they are and to check the ratio as its stamped on the crown wheel..1 tonner diffs have a larger pinnion which meens that you would need the u bolts and a step down universal...im going to do some more technical type articles and post them up and diffs is one i am going to try to explain...:eek:...:Hair:

Loving your tech articles Oz keep them coming learning heaps especially when a picture means a thousand words you could tell me 100 times and still couldn't get it but to see the pics awesome..

**Mazdragon** · 08-07-2010, 01:40 PM

next question, (and yes beigy is a WB), i have factory power steer and air con.... to use the same would mean different brackets etc wouldn't it? cos the mounting is different? can i use the 6 cyl components for 8 cyl or do these differ as well. Also assuming would need starter motor for an 8 and can't use the 6? Yeah a lot of questions and when I go shopping, i want to be informed so i know what i'm lookg for and at. Thanks heaps for help so far Greg.
Maz

**ozbox** · 08-07-2010, 02:00 PM

ok maz,you can use your alternator but you need v8 bracket..you need v8 starter..you can use your power steer pump and lines and box but you will need a v8 power steering braket and crank pulley which is a 3 row for air as well..your a/c pump is ok and its associated lines etc but you need v8 brackets..when i say v8 brackets and pulleys i meen hq to wb not commodore...your a/c maz..is it a big arse harrison compressor which are black or is it a small sanden compressor which is silver/ally?..reason i ask is if it is the small one you need the bracketry from an 83/4 wb statesman that runs the small compressor..

**Mazdragon** · 10-07-2010, 03:25 PM

Hi Greg, just checked under the bonnet. It's the small silver compressor. Thanks for your help so far. do I need to do anything to the brakes and/or suspension since it's a heavier engine? or is all that standard across the board? Was thinking about a large alternator since I'm running sound system, lighting and my headlights are now more powerful too. It'd have a standard 55amp, not sure how much higher to go.

**ozbox** · 10-07-2010, 04:36 PM

maz,brakes are the same..best to change the front springs to v8...;)

i think the largest alternator you can get is 120..i think that will run everything and even a microwave for the popcorn....

**Mazdragon** · 10-07-2010, 10:59 PM

i think the largest alternator you can get is 120..i think that will run everything and even a microwave for the popcorn....[/QUOTE]

what about a tv and dvd for the porn?? :Chin: