type of 4x4

[T.winegar]

my truck has 4wd, but i want to know what kind it is and if it is the 'not as good as the 91 1stgens 4wd. my brother has a 91 and he claims it is better than mine. something to do with the locking differential.

is this true? did they change the 4wd when they put the intercooler on the 91's?

[Richie O]

If he has a posi rear and you don't then his is better. My 89 has a factory posi. All the rest is the same. Did you think that he might be pissing you off???

[RumbleFish]

the only other thing that is different is the locking hubs. yours are much better.

[burnt_servo]

for all intents and purposes , how the 4 wheel drive works on a first gen dodge with a diesel is the same .

and for that matter it is the same for every first gen dodge that doesn't have a np203 transfer case .

they stoped using the np203 around '79/'80 . back then these where a true full time 4x4 splitting the power between all the tires equally , at least everyone i've ever owned did. ( they had what could be described as a "open diff " in the transfercase which then could be locked making it the same as any other 4x4 when the lever is in "4x4 " position ) .



what makes more of a difference is the tires being used and how the driver drives his truck .

even if his truck has a " posi " , it is not going to be working much better than a open diff on a 20 year old truck , since it is more than likely wore out .

[dpuckett]

even if his truck has a " posi " , it is not going to be working much better than a open diff on a 20 year old truck , since it is more than likely wore out .

In my experience with Dana70s, a worn out posi turns into a spool. He'd know the difference.

[nooblet]

To my knowledge there is no year/model that came with a posi rear end. It was an option, some have it, some dont.

The only big difference in your drive-train vs. any other 1st gen drive train is the front hubs. You have external hubs, 90 and up have internal hubs. I wouldn't say one is better than the other... Most people like internal hubs because they are easily repaired/replaced. Hubs are so simple they never really break unless your doing something crazy, so i wouldn't worry about it.

Tell you brother he's an idiot

Chris

[RumbleFish]

ive seen 90's with the external selectro style hubs. id guess that they changed it in the 90 model year sometime. ive always heard these external style hubs are near indestructable, but are expensive to replace.

[Richie O]

ive seen 90's with the external selectro style hubs. id guess that they changed it in the 90 model year sometime. ive always heard these external style hubs are near indestructable, but are expensive to replace.

I broke one Also the highway dept I used to work for broke one. I have found that if it can be broken I can break it. I think I could break a wrecking ball.

[GO OVRIT]

As far as strength goes, the Selectros are comparable to the internal lockouts. I have seen a lot more issues with the Slectros sticking(locked or unlocked) There's a good chance your front axle is a d61 with 3.07 gears compared to a 60 with either 3.54s or 4.10s. There really isn't any strength difference though.

[T.winegar]

If he has a posi rear and you don't then his is better. My 89 has a factory posi. All the rest is the same. Did you think that he might be pissing you off???

i dunno, it might piss me off a little. but, how did you get the posi rear?? that would be the only difference then right?

[Richie O]

i dunno, it might piss me off a little. but, how did you get the posi rear?? that would be the only difference then right?[/quote]

I guess that would be the only difference if he has a posi. If he does not then they are basically the same except the type of hub and maybe the gear ratio. I found a replacement rear out of a junk yard. I blew my original open rear end up. Just lucked out and found a factory posi rear.

[T.winegar]

was it worth the money? how much?

[Richie O]

was it worth the money? how much?

I love it but was way to expensive. I broke mine a few years ago. I looked for a couple of months and one came in to a quality junk yard. It was a complete 3.07 posi unit. ( the hard one to find ). Dropped a cool grand on the thing. Came with a 6 month money back guarantee. Was tired of looking and did not want to go out of state. You gotta pay to play.

[T.winegar]

was it worth the money? how much?

I love it but was way to expensive. I broke mine a few years ago. I looked for a couple of months and one came in to a quality junk yard. It was a complete 3.07 posi unit. ( the hard one to find ). Dropped a cool grand on the thing. Came with a 6 month money back guarantee. Was tired of looking and did not want to go out of state. You gotta pay to play.

ain't that the truth... but its just money right?

[Philip]

Richie if you want sticker shock try to find a dually rear axle with 3:07's.

The one I bought ten years ago cost more than your axle did. I had to replace the brakes/drums/emg cables and bearings all the way threw it also.

I was told it was ready to bolt in and go.

yea right