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Ring & Pinion ?
http://www.woodsbuggy.com/phpBB3/viewtopic.php?f=12&t=9063		 Page 1 of 2
Author:  ridenrace6 [ Mon Mar 15, 2010 1:52 am ]
Post subject:  Ring & Pinion ?
ok im going to take a stab at this and see if i get it right,,,,,what is the strongest ring & pinion to the weakest and what did they come factory in? also is it correct that the actual 1st - 4th gear ratios themselves are the same for the 3, 5, and 6 rib trannys and that it is only the ring & pinions that are different ratio wise?

1) 4.57 ------ 6 rib

2) 4.86 ------ 5 rib

3) 5.42 ------ 3, 5, and 6 rib

4) 5.38 ------ 3 rib

somebody correct me if im wrong and im sure some of it is :|

i dont know if it is possible without compromising some strength somewhere but using a stock ring & pinion and weddle gears i would like a to get a 6 rib geared so that 1st was like a 5.38 1st and so that 2nd - 4th is like a 5.42 2nd - 4th?

if not what would be my best compromise?
Author:  Eric DeBord [ Mon Mar 15, 2010 11:07 am ]
Post subject:  Re: Ring & Pinion ?
4.57 is the strongest..5.38 the weakest. 5.42 is stronger than the 5.38 and maybe somewhere close to the 4.86, but the lower the ratio, it is inherently weaker if the same material and geometry is used.
The gear ratios (1st through 4th) are similar. some have 3.78 for first and some had 3.80..not much difference. 2nd was almost always the same..2.06 as well as 3rd 1.26. There were various 4th gear ratios...85, .89, .93, .82 etc. depending on what trans it was.

It is not possible to get a 2nd gear low enough using a 4.57 R&P to climb really bad stuff in, imo. I think the lowest 2nd available is a 2.46. One way to figure gears is to use the final drive ratio..that is multiply a gear by the R&P ratio. A stock 6-rib with a 4.57 R&P has a 2.06 2nd gear. Multiply this and you get 9.42. In other words it takes 9.42 turns of the input shaft to turn the wheels once (in 2nd gear). You can do this for any gear to figure out what you want. I have a 3.11 1st with the 4.57 R&P..that is a FDR of 14.21 Again, the lwest 2nd gear available is 2.46. If you multiply that you get 11.24. If you multiply a 5.42 R&P by 2.46, you get 13.32.. which works. Bottom line is if you want a 2nd gear trans, you have to use the weaker 5.42 R&P.
Author:  instigator [ Mon Mar 15, 2010 6:22 pm ]
Post subject:  Re: Ring & Pinion ?
i need math class!

ok so is that with a 33" tire
give me the math.
33" 103.62 inches around
35" 109.9 inches around
38" 119.32 inches around
40" 125.6 inches around
Author:  Stevo [ Tue Jul 06, 2010 10:55 pm ]
Post subject:  Re: Ring & Pinion ?
This post should be a sticky! I have refered to it several times.
Author:  harry89 [ Sun Sep 26, 2010 3:26 pm ]
Post subject:  Re: Ring & Pinion ?
1st is a 411 n 2nd is a 233, other than that i think its the toughest
Author:  RaceBugg1098 [ Mon Sep 27, 2010 8:33 am ]
Post subject:  Re: Ring & Pinion ?
I didn't know they ever made a bigger ring gear.? do you just mean a diff ratio?
Author:  rockrockets1 [ Mon Sep 27, 2010 4:01 pm ]
Post subject:  Re: Ring & Pinion ?
a 5.42 out of a Vanagon is bigger than a 5.42 out of a bus 3 rib
Author:  RaceBugg1098 [ Tue Sep 28, 2010 8:05 am ]
Post subject:  Re: Ring & Pinion ?
interesting :?
Author:  rockrockets1 [ Tue Sep 28, 2010 10:44 am ]
Post subject:  Re: Ring & Pinion ?
Correct me if I am wrong But the 3 rib bus tranny built for the mountains of Germany had a 5.42 R&P instead of a 5.38 R&P some were imported over here they were weak .Then came the 5.42 out of a Diesel Vanagon it was the size of the 091 4.57 just diffrent teeth but stronger than the three rib one
Author:  RaceBugg1098 [ Tue Sep 28, 2010 12:06 pm ]
Post subject:  Re: Ring & Pinion ?
I don't know that, but I did have an early sideshift with a 5.42, so that kinda sounds right.
Author:  ridenrace6 [ Tue Sep 28, 2010 12:35 pm ]
Post subject:  Re: Ring & Pinion ?
whats bigger?

the reason im asking is because i do know that a 091 ring gear will bolt to a 002 diff, and vice versa if im not mistaken
Author:  kyjr.buggy1 [ Tue Sep 28, 2010 12:36 pm ]
Post subject:  Re: Ring & Pinion ?
rockrockets1 wrote:
Correct me if I am wrong But the 3 rib bus tranny built for the mountains of Germany had a 5.42 R&P instead of a 5.38 R&P some were imported over here they were weak .Then came the 5.42 out of a Diesel Vanagon it was the size of the 091 4.57 just diffrent teeth but stronger than the three rib one


True dat. As far as I know anyway.
Author:  Maddog [ Tue Sep 28, 2010 6:04 pm ]
Post subject:  Re: Ring & Pinion ?
rockrockets1 wrote:
a 5.42 out of a Vanagon is bigger than a 5.42 out of a bus 3 rib

I've got both, and if memory serves me right they are the same, as far as pinion and ring teeth goes.
Eric will know for sure.
Author:  rockrockets1 [ Tue Sep 28, 2010 6:08 pm ]
Post subject:  Re: Ring & Pinion ?
Very well could be ....It's been a long time since I had one
Author:  rockrockets1 [ Tue Sep 28, 2010 6:10 pm ]
Post subject:  Re: Ring & Pinion ?
Ive been told it's a 5.86 I'm thinking about
Author:  Maddog [ Tue Sep 28, 2010 6:16 pm ]
Post subject:  Re: Ring & Pinion ?
I tried a 5.86 once, broke the pinion in half on an easy hill.
Towd back to the parking lot in disgrace by two 4 wheelers.
Author:  Dave Winterburn [ Wed Oct 13, 2010 2:30 am ]
Post subject:  Re: Ring & Pinion ?
I wish I could find some sort of trans info sheet as to factory improvements as to what and when. Other than just rib count or ring and pinion changes. I have a 5 rib with a shot reverse and another used one yet to try. 6 ribs are totally scarce and very pricy if you can find one.
Author:  RaceBugg1098 [ Wed Oct 13, 2010 12:15 pm ]
Post subject:  Re: Ring & Pinion ?
I just tore my 4:57 up in my built 6 rib in the race buggy :cry:
Author:  PhillipM [ Wed Oct 13, 2010 2:19 pm ]
Post subject:  Re: Ring & Pinion ?
I've a box full of broken ones here, maybe you can find two halves that have got teeth still on and glue them together? :lol:
Author:  passat2800 [ Wed Oct 13, 2010 7:07 pm ]
Post subject:  Re: Ring & Pinion ?
Philip. You have a gold mine over there with the side shifts.There is a bloke over there named Thomas hurley who would round up all types of gear boxes for me.My son has a 5 speed in his buggy from there with a 411 first and a 233 second. With a 483 RnP (crown wheel).
Author:  PhillipM [ Thu Oct 14, 2010 8:17 am ]
Post subject:  Re: Ring & Pinion ?
Yeah, there used to be loads of UN5's over here too until the Ozzies cottoned on and came over with a couple of trucks and bought every one they could find :shock:
Author:  chris38375 [ Thu Oct 14, 2010 8:56 am ]
Post subject:  Re: Ring & Pinion ?
RaceBugg1098 wrote:
I just tore my 4:57 up in my built 6 rib in the race buggy :cry:

how did that happen,maybe a bad bearing or something?
Author:  chris38375 [ Thu Oct 14, 2010 9:01 am ]
Post subject:  Re: Ring & Pinion ?
rockrockets1 wrote:
Correct me if I am wrong But the 3 rib bus tranny built for the mountains of Germany had a 5.42 R&P instead of a 5.38 R&P some were imported over here they were weak .Then came the 5.42 out of a Diesel Vanagon it was the size of the 091 4.57 just diffrent teeth but stronger than the three rib one

from what an old VW tech told me if u broke ur tranny in a bus,,a 5;38,,,a 5;42 was the replacement for the 5;38,we have got a couple buses with a 5;42
Author:  RaceBugg1098 [ Thu Oct 14, 2010 3:32 pm ]
Post subject:  Re: Ring & Pinion ?
Landing off a big downhill jump in 4th gear. I have jumped that jump hundreds of times, just finally gave up. cracked the nose cone too! :roll:
Author:  kyjr.buggy1 [ Thu Oct 14, 2010 6:13 pm ]
Post subject:  Re: Ring & Pinion ?
Lesson learned: Don't mat it 'till the back wheels make contact with the ground! :mrgreen: :lol:

-Dakotah/koko
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