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Help needed with Hilux rear diif (airlocked)

Tech Talk for Cruiser owners.

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Posts: 235
Joined: Sat Apr 11, 2009 4:12 pm
Location: Heidelberg, Victoria

Help needed with Hilux rear diif (airlocked)

Post by collins110 »

Hey guys just wondering if anyone can give me some more ideas on my current problem:

Current Problem:

-i buggered my pinion (breaking 3 teeth straight off) i managed to pick up a second hand crownwheel and pinion. I had to machine down the new pinion to fit with the Airlocker housing due to it being larger then the standard carrier. The new pinion was machined to the same size as the old. The new and old crownwheels and pinions are the same ratio however the teeth and diameter of the new pinion are larger then the old. Even after machining the new pinion and removing the shims between the pinion bearing and the pinion it is still hitting the airlocker housing.

my questions are:

-Does the new pinion need machining further?
-Is the airlocker housing bent causing these problems?
-Or is it something else?

thanks guys
Northside Fleet Services PTY. LTD.
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Posts: 48
Joined: Sat Sep 12, 2009 8:27 am
Location: Mackay

Re: Help needed with Hilux rear diif (airlocked)

Post by 80gus »

sounds like needs more machining.
Posts: 241
Joined: Sat Dec 15, 2007 8:25 am
Location: Gold Coast

Re: Help needed with Hilux rear diif (airlocked)

Post by a1 mech »

What model airlocker are u using? And wat year model is the C&P set from?

Later model trucks from about 89 on use the larger 8" C&P, earlier trucks use smaller profile gear. This is commonly refered to as either 4cyl or V6 diffs but it in fact goes by year more then engine. Could this be your issue? Have a read of the blog below.

http://www.locktup4x4.com.au/blog/?cat=6" onclick="window.open(this.href);return false;
Posts: 2404
Joined: Fri Jul 07, 2006 9:00 pm
Location: Ipswich

Re: Help needed with Hilux rear diif (airlocked)

Post by Sic Lux »

Sounds like you might have a v6 cw&p I know the pinion bearings on them Are quite a bit larger and 90% sure the crownwheel is thicker also so you will need the 3rd member to match it, also think you will need different carrier bearings to match it up with the airlocker or you could machine a spacer up for it.
plenty of parts on the bench
Posts: 2404
Joined: Fri Jul 07, 2006 9:00 pm
Location: Ipswich

Re: Help needed with Hilux rear diif (airlocked)

Post by Sic Lux »

Sounds like you might have a v6 cw&p I know the pinion bearings on them Are quite a bit larger and 90% sure the crownwheel is thicker also so you will need the 3rd member to match it, also think you will need different carrier bearings to match it up with the airlocker or you could machine a spacer up for it.
plenty of parts on the bench
Posts: 241
Joined: Sat Dec 15, 2007 8:25 am
Location: Gold Coast

Re: Help needed with Hilux rear diif (airlocked)

Post by a1 mech »

I recently fitted a new V6 C&P set to my diesel carrier with a RD132 locker, There is a bearing size, possibly you have used the wrong bearings?
Posts: 13
Joined: Tue Feb 22, 2011 5:46 pm

Re: Help needed with Hilux rear diif (airlocked)

Post by 60series4me »

hilux have lots of differnt gear sets some have biger bearings and some have a biger pinion hight
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