80 Series v 100 Series Rims

Submitted: Monday, Mar 31, 2003 at 17:38

ThreadID: 4148 Views:8016 Replies:4 FollowUps:7

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Gordon

This is a word of warning to any 80 Series owner with a trailer who may be thinking of upgrading to the 100 Series. On a recent trip to the Kimberley in my 80 Series, I met a tour operator in a 100 Series who was really peeved that Toyota had changed from 6-stud wheels in the 80 Series to 5-stud wheels for the 100 Series. This guy's trailers all had 6-stud wheels to be compatible with his 80 Series but when he upgraded to the 100 Series he had to get new axles and new wheels for his trailers to maintain compatibility - he said it cost him over $1,000 per axle. Anyone know why Toyota would do that - other than the obvious ($)?

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Reply By: crfan - Monday, Mar 31, 2003 at 18:04

Monday, Mar 31, 2003 at 18:04

They say it gives better clamping pressure (not that landcruiser wheels were ever known to fall off) But I think it has more to do with saving money by getting rid of 4 studs and nuts and maybe a bit of weight.

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Follow Up By: GaryInOz - Monday, Mar 31, 2003 at 18:33

Monday, Mar 31, 2003 at 18:33

More to the point it is Toyotas own PCD so they can extract more $$$ out of you if you need replacement rims. As for "more clamping pressure" I don't see how, with one less stud clamping down at a lesser PCD this would increase the load per stud in tension during turns. I guess if push comes to shove they could always share the wheels from their other 5-stud four wheel drive... the RAV4

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Follow Up By: Phil G - Monday, Mar 31, 2003 at 19:52

Monday, Mar 31, 2003 at 19:52

The 100 series studs are bigger.

Phil

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Follow Up By: GaryInOz - Monday, Mar 31, 2003 at 20:30

Monday, Mar 31, 2003 at 20:30

It also depends on the thread pitch and depth, may be a thick stud with a fine shallow thread. Notwithstanding the extra stresses imposed by a 2 tonne vehicle on a 5-stud PCD that appears to be 10-15 mm smaller than the 6-stud would, during cornering, have to taken seriously. Sounds a bit like "+5% safety margin" engineering, I guess time will tell how it copes with the "+10%" that the Australian outback can serve up.

The only other 5-stud, 2 tonne plus vehicles I can think of are the Landrover/Rangerover and the Mercedes Gelanderwagen, both of whom have substantially larger PCD than the Toyota. The Toyota PCD is the same as they use in their passenger vehicles, Camry, Lexus etc., and I think the change was more influenced by cost cutting (cross-platform standardisation) than any real improvement in technology.

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Follow Up By: GaryInOz (Vic) - Wednesday, Apr 02, 2003 at 15:29

Wednesday, Apr 02, 2003 at 15:29

Further to other posts, The LC100 5-studs HAVE BEEN BREAKING STUDS (apparently acknowledged by Toyota) according to 4x4 Australia magazine (Prado review). That is why the new Prado RETAINS THE 6-stud pattern.

Toyota tough? yeah right......