Engine/Transmission (1994 - 1998) 4wheel or 2wheel ABS

[Coalsmoke]

I'm planning on getting a tru-speed or abbott speedo correcter / ERA, and from what Iv'e read there is a problem with using the abbott on trucks with 4wABS. I think my 95 only came with rear wheel ABS, but how can I be sure, or does anyone know this for a fact?

Thanks



PS: Anyone have any thoughts on the best way to adjust the speedo on these older 2'nd gens?

 

[Rescue Ram]

Go to a dealer and have them run your vin. From this, they can get a printout of the options that were ordered on you truck. That is the surest way to know.



Brian Z. Oo.

 

[Coalsmoke]

I tried that and the guy looked at me and said that he wasn't able to do that. Is that a U. S. only thing or do I have to go back there and start speaking with the service manager.

 

[Rescue Ram]

Prarie farkle.



There should be no reason they couldn't look it up. At least not in the US. I don't see why it would be any different in CN. I would talk to a service manager. If you still have problems, let us know.

 

[JNailor]

Look by the brake cylinder under the hood. 2 wheel ABS just has a small metal block with a couple of solenoids on it. 4 wheel ABS has a large assembly of wires and lines and just about completely fills the area by the hinge and covers the inner fender panel.

 

[Missouri Mule]

You mean you did not keep your window sticker!

Try looking at sticker under the hood it list some options.

 

[Coalsmoke]

I bought the truck with over 300,000 kms on it, from a dealer's lot, with no past history on it. i do however hace that under-hood sticker mostly intact.

 

[jtwcummins]

look at the front brakes. If 4 wheel there will be pickup sensors, magnetic over what looks like a gear wheel behind rotor. You can see them by looking at the wheel, should be a cable as well as brake line. Don't think they are installed unless 4 wheel abs is on truck

 

[Coalsmoke]

OK, thanks for the check. I'll go and see what I can find.

 

[Loren]

Coalsmoke,



First things first... Doesn't your 1995 truck have a mechanical speedometer that is driven by a gear from the transmission or transfer case? My 1995 does.



If it's a mechanical speedometer, I don't think that you want a Tru-Speed computer. I have a Tru-Speed on my 2000 truck to correct for the Rickson wheels and tires. It changes the digital signal from the rear wheel speed sensor to a different rate before sending the corrected signal on to the truck's computers.



I thought that the mechanical speedometers are all corrected by changing the gear on the transmission/transfer case.



Be sure before you spend some money unnecessarily.



Loren

 

[Coalsmoke]

Thanks for the heads-up. I thought all 2nd gens were digital. What's the easiest way to tell as I imagine that our 95's are probably pretty similar?

 

[Coalsmoke]

Well, done a little research and apparently the truespeed is listed for our trucks as years 92-00. Anyone know whether this is accurate?

 

[Eric_77]

My 92 has a electronic speedo so I would assume the true speed website is correct.



Easy way to check the speedo; try going 20-30 and turn key back one notch so engine dies if speedo dies then electronic if it keeps running then it is mechanical.



The 4wheel ABS was a rare option back then, but the brake lines for 4 wheel will gointo a ABS box with both front and rear lines where the rear only only has the rear line going into the ABS control box.