| [ Total Views: 950 | Total Replies: 10 | Thread Id: 54986 ] |
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 70BAJA
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 posted on August 3rd, 2006 at 06:47 PM |
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gearbox choice (swing axle)
can anyone help me with the box to run?
the engine is a single port 1600 (ratio rockers fitted very soon)
the problem is the car seems to struggle on a few highway hills. with the stock box
the tyres i run are 265/75 15 road patern
so in other words what swing axle box has the shortest 4th gear
thanks
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VWCOOL
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| posted on August 3rd, 2006 at 06:50 PM |
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do you have four (1970s) or five stud (1960s) wheels?
Pay your debts, CxxT
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70BAJA
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| posted on August 3rd, 2006 at 07:12 PM |
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its a 70 model four stud ie(70BAJA)
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Baja Wes
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| posted on August 4th, 2006 at 08:48 AM |
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The far better option would be to put a 1600 twin port in there, maybe some slightly bigger pistons too. Then you'll be able to pull the tall 4th
gear.
I'd rather spend the money on more power to take advantage of the nice tall highway gearing than to spend the money to put in an older model gearbox
with short gearing.
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pete wood
A.k.a.: figure itout
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| posted on August 5th, 2006 at 07:00 PM |
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I'm with wes. By the time you put in the early box in a reasonable nic you could just as easily put on a set of 1640 pistons and pots to go with your
ratio rockers. Besides, a stock 1600 will destroy some early swingaxle boxes so it's a short term gain anyway.
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70BAJA
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| posted on August 6th, 2006 at 08:22 PM |
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thanks guys ill save some bucks and put some larger pots in
hopefully the ratios make a difference
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tassupervee
A.k.a.: Knob Jockey
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| posted on August 7th, 2006 at 08:25 PM |
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Well, to answer you original question, a 1200 barrel box. (4.3 diff. and 0.89:1 4th gear)
Available at most rubbish tips and bush dumps!!!
L8tr
E
Im not a complete idiot, quite a few parts are missing....
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VWCOOL
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| posted on August 7th, 2006 at 09:30 PM |
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closely follwed by a late 1300 box (1971-73?) cos it has a 4.3 diff too, with four-stud wheels. Do you need tyres that big?
Pay your debts, CxxT
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70BAJA
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| posted on August 10th, 2006 at 08:29 PM |
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265/75 15 i have are roughly an inch smaller than 31 10.5Rs
i do believe that most bajas around are running the 31s
so to answere the question do i need them that big
their not that big
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Baja Wes
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| posted on August 11th, 2006 at 09:02 AM |
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correct, they are not that big. I run 31's and used to have a 3.88:1 R&P box, it was good. The smallest engine I ran with that box was a 1776. It had
enough power to pull top gear, and was nice on the highway. I drove my baja with that box and a 1915 from brisbane to canberra and back for the
summernats one year. It was good.
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Craig Torrens
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| posted on August 11th, 2006 at 11:11 AM |
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| Quote: | Originally
posted by VWCOOL
Do you need tyres that big?
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Yep, because its going offroad and it :jesusis a Baja
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