What makes the 6 rib so much stronger than 3 rib? I have a guy telling me the guts (1st through 4th gear) are the same and i see where some guys are using 3 rib bellhousings on 6 rib trannies. So is the ring and pinion bigger in the 6 rib? What specificaly makes the 6 rib so much better? And what is stronger on side shift trans as opposed to 6 rib. Thanks for any info i,m trying to learn all i can.

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Turbocharged Ecotec,vanogon midshift,Berrien WoodsBuggy wagon.

More ribs means less distorton so the bearings stay truer,,3 ribs were for smaller engine so they have lower geared differentials and inherently have more,,,thinner gear teeth so thinner means weaker. amongst other things

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If your clutch ain't slippin,, you probably got it adjusted right!!!!!

The gear ratios aren't the same, and the ring and pinion isn't the same. The six rib is geared much higher. But like Marty said, the gears itself are stronger. Along with the differential, and the actual case itself.

-Dakotah/koko

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-Dakotah/koko
keep on keepin' on!!

i thought the gearsets were same reatio just stronger in 6 ribs and that the ratio of r&p is what made them higher geared but i could be wrong

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Just Stand On It!!!!

Chris

Yea, you're right. My bad, they have the same ratio but stronger gears, just the R&P is different. 3 rib is a 5.42 and I think a 6 rib is 4.56. Some six ribs came with 5.42s, and other gearing too.

-Dakotah/koko

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-Dakotah/koko
keep on keepin' on!!

Some mountain geared 3 ribs are 5:42
For the most part a 3 rib is a 5.38
5 rib is a 4.86 and a 6 rib is a 4:57

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Gary

Turbo VW Sand Racer
Polaris Ranger



"If you don't run into the Devil every once in awhile, you must be going in the same direction!"

Davis Motorsports FaceBook Page

so if you fill a 3 rib full of weddle gears and r&p the only difference would be the case? Is a 6rib a direct replacement for a 3 rib or are mounting mods needed? Why do some guys use 3rib bellhousing on 6rib trans?

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Turbocharged Ecotec,vanogon midshift,Berrien WoodsBuggy wagon.

the case is stronger,,,less twist,,therefore less failure,,,as far as bell housings ,I put a 6 rib on the floor next to a 3 rib and they were the same height,,,I was wrong in thinking that the 6 rib bell housing was longer,,,the 6 rib bell housing has a much stronger cross shaft too. They accept different starters but they can be modified to accept any starter. I use a 3 rib bell housing but I wonder why now

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If your clutch ain't slippin,, you probably got it adjusted right!!!!!

at autozone a 6 rib starter is alot higher than a 3 rib starter

is the factory starters whats different and wil a high torque starter fit either bell housing

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Just Stand On It!!!!

Chris

hi torque or factory 091 fits only 091,, u got to order what u got,,002 starters are cheaper even in the hi torque stuff

Distance from the rear edge (where the motor sits against it) of the bellhousing to the flat surface where the starter sits is 3/4" longer on a 6 rib than it is on a 5 or 3 rib bellhousing.

The overall depth from mounting surface of motor to mounting surface of tranny of the bell housings may be the same, but an end shift 6 rib is about 1/2" longer overall than a 3 rib. The body of the 6 rib tranny must be longer I guess. So you might need a couple half inch spacers between your rear lower mounts and the ears of the tranny and you may to lengthen your lower motor studs.

its the mid-section on an 091 that is a little longer,all the cases are the same length,u can put a 6 rib case on a 3-rib tranny

The side shift 6-rib out of a watercooled bus has bigger (wider) gears than a nose shift 6-rib and a much stronger reverse gear. I believe the mid section of the case is stronger as well around the bearings.

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Maybe you should chug on over to mamby pamby land....

So what year busses had side shift trannies? What should i expect to pay for one? Any pictures of side shift linkages. What about diesel bus trannies and what about the 5 speeds? Thanks.

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Turbocharged Ecotec,vanogon midshift,Berrien WoodsBuggy wagon.

These are from Vanagons, not busses.
84-91 for water cooled trannys.
Shifted out of the center case section.
80-83 for air cooled trannys.
Shifted from the intermediate housing.

Speaking of diesel trannys, have a customer that just acquired one from a diesel vanagon.
It is a DZ code.
He took the bell housing off and counted teeth.
41/6 which is a 6.83.

That would make a 25.8/1 1st gear and a 14.06/1 2nd gear.
By contrast a stock 6 rib is 17.27/1 1st and 9.41/1 2nd.

Anyone familiar with those?

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Gary

Turbo VW Sand Racer
Polaris Ranger



"If you don't run into the Devil every once in awhile, you must be going in the same direction!"

Davis Motorsports FaceBook Page

ive seen a 5;86 out of a diesel 83model,,41/7

# Transmission Final drive and gear ratios Effective Ratios Speed @ RPM (km/h)= 4000 Notes
Diesel 4 speed R&P 1st 2nd 3rd 4th 5th 1st 2nd 3rd 4th 5th 1st 2nd 3rd 4th 5th
1 DM, DS 5.43 3.78 2.06 1.26 0.852 20.5254 11.1858 6.8418 4.62636 0 24 44 72 107 N.A. models '82-83 diesel
2 DY, DZ, 6D 5.86 3.78 2.06 1.26 0.852 22.1508 12.0716 7.3836 4.99272 0 22 41 67 99 N.A. models '82-83 diesel
3 ACP, ACR 5.83 3.78 2.06 1.26 0.852 22.0374 12.0098 7.3458 4.96716 0 22 41 67 99 1.6L >84.3
4 AAF 5.83 3.78 2.06 1.23 0.852 22.0374 12.0098 7.1709 4.96716 0 22 41 69 99 1.6L >84.8
5 AAH 5.5 3.78 2.06 1.23 0.78 20.79 11.33 6.765 4.29 0 24 44 73 115 1.6TD >85.1
6 ALD 5.5 3.78 2.06 1.23 0.78 20.79 11.33 6.765 4.29 0 24 44 73 115 1.7L > 86.9

I am currently using a starter from Advanced Auto, they have much better starters than Autozone starters, those Duralast stuff IMO is JUNK, I never had good luck with them in any vehicle I used to own. I gave $50 for the starter from Advanced with a lifetime warranty and also has a hi-torque for a spare now after it was being repaired.

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"Loud pipes saves lives"

I run a 6 rib side shift thats gear ratio is 4.86....

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Redneck famous last words...hey yall watch this
Buggy drivers famous last words....hold my beer, it dont look that steep

3 Rib gears and 6 Rib gears are not the same.

The 3 rib bell is a little shorter, thus sucking the motor in a little. Each (most) buggy is set up for what ever trans. combo. you are going to use.

incorrect....3, 5 and 6 rib bells are the same length (depth)...only difference form the 3 and 5 to the 6 is the distance from the starter base to the end of bell which mates to engine

i was told the gear stack ratios were the same but they all had different ring and pinion ratios

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Just Stand On It!!!!

Chris

He insisted it was a 41/6, I didn't see it.

This chart doesn't give the DZ R&P code.
http://www.rjes.com/html/gearbox_types.html
DZ is at the bottom of the list.

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Gary

Turbo VW Sand Racer
Polaris Ranger



"If you don't run into the Devil every once in awhile, you must be going in the same direction!"

Davis Motorsports FaceBook Page

gary,did not believe it myself,took bell off and counted again,41:7 must have had my head up my rear.inside looked like new and oil and magnet were very clean.is that the same as my 6rib,make good spare or trade for turbo header fabrication.