Engine/Transmission (1994 - 1998) What's the difference between 94 to 98 12v trucks?

[Cummins Thunder]

Heres another odd truck...



http://www.autotrader.com/fyc/vdp.j...=&engine=&fuel=&doors=&style_flag=1&cardist=0



It appears to be a 24valve 98 Club Cad 4wd auto SWB. I have NEVER seen such a setup!

 

[Forrest Nearing]

I've seen lots of club short 12v's, but that's only the 2nd club short 24v I've seen

 

[Willys]

I've seen a few club cab 24V's- original owner on one of them.

 

[ILIANBG]

Are new (stiffer) valve springs required on 12v before exhaust brake installation?

 

[Woodenhead]

Yes if you want to get any real use out of the brake. Some can be used at a reduced back pressure with the stock springs. If you're going to spend the $ on the brake then spend some more on the springs and change them out, it's not that difficult.



There's a write up in the last TDR (Issue 54) that starts on page 30. They use compressed air to hold the valves, but it's not really necessary. I (like most others) just made sure the piston was at TDC so the valve wouldn't drop in.



Mike

 

[FDavid]

Yes, all 12 valves should upgrade to 60lb heavy duty valve springs for exhaust brakes. You can get them directly from Pacbrake.

 

[Vaughn MacKenzie]

I've seen lots of club short 12v's, but that's only the 2nd club short 24v I've seen

Forrest, the rarest club cab I ever saw was a '99 at Massdiesel's shop back in 2001. I had to look at the door sticker to make sure it was a '99! Dodge did carry the CC option into the early part of the '99 model year then dropped it.



Vaughn

 

[Forrest Nearing]

wow, not many of those around!!!!!!!

 

[Neibe]

Wow, there are more than just a few differences. What about brake jobs- front 2wd/4wd and rear brakes? My 02 truck's front brakes were so easy to do. I know the 12v trucks do not have rear disc brakes, are the drums hard to deal with? And those 4wd front ends- how are those holding up? Are the rear axles Dana 80? I think the same 3. 54 and 4. 10 were offered as auto and manual. Thank you all for the information, and please keep it coming.

All 2500 5-speeds have a hybrid Dana 80 auto's have a Dana 70 3500 all have a Dana 80. I ordered mine with the 241HD transfer case a 241 was standard the 241 HD was standard on the 3500. I 've had 2 clutches in my truck stock clutch was replaced at 140,000 cause the pilot bushing seized up on the input shaft so I got a South Bend clutchthat one lasted 40,000 and I blew out the center section so South Bend credited my next clutch and I upgraded to a 13" clutch and so far so good. I have replaced ball joints at 100,000 I now have over 200,000 on the truck and balljoints are still good. Disc brakes are easier than drum but drum are not impossible to do yourself. It just takes a little longer and you got to think about what your doing. All my u-joints are original except one on the front driveshaft. I still have the original batteries in my truck which I am amazed at. I'm the original owner I bought my truck in July 1997 ordered it in March of that year.

 

[Neibe]

Yes, all 12 valves should upgrade to 60lb heavy duty valve springs for exhaust brakes. You can get them directly from Pacbrake.

I was told the 5-speeds have the 60lb springs is this true?

 

[MAleksandrowicz]

The five speeds don't have the 60lb springs from the factory.