Engine/Transmission (1994 - 1998) 1 ton rear brake cylinders

[nball]

Can anyone tell me how much if any , 1 ton rear brake cylinders will change the empty weight braking characteristics of 3/4 ton truck..... norm

 

[SRehberg]

I can't speak for the braking characteristics other than the "seat of the pants" evaluation, but it definetly seems to have a more positive feel, than the questionable stopping of front only.



I believe the later model trucks went to the larger cylinders as factory standard, so the change must be warranted. The factory ones your truck came with, are also used in the 1500's, so they are on the small side. I'm glad I changed mine out, and the positive stopping feels a lot better.

 

[KYOUNG]

brakes

the 1 ton brake cylinders improved braking emensely, but will lock up easily in wet conditions..... be careful!

 

[Cooker]

For me, it made a noticable difference and I feel it's worth the money, but I didn't feel a night and day difference like I see some others mention.



Just my personal experience,

Ryan

 

[patrobertson]

Where do you get em?

Do you just have to find a wrecked 1 ton or can you buy them? Whats the easiest and whats cheapest?

Thanks guys



Shane Robertson

 

[LandShark]

Any auto parts store will have them. About $25 each.

 

[Cooker]

I paid $13 each for mine. If you do a search you should come it with some part numbers. If you need them shoot me a PM, I have them written down.

 

[Midnight]

Something to keep in mind though is going with the larger wheel cyl's is it may cause the pedal to feel a liitle mushy. To do the job properly the master cyl should also be replaced out a 1 ton. The bore in the master cyl is ALMOST always the same as the bore in the wheel cyl.

 

[illflem]

The master cylinder bore on 2500s and 3500s is the same, 31. 8mm. 3500 wheel cylinder bore is 27mm, 2500 is 23. 8mm. Most auto parts sell the 3500 wheel cylinders for less than 2500 ones. Entering the different bore sizes in a force calculator I have the 3/4 ton cylinders put out 4447 newtons, the 1 ton 6154, an increase of around 30%.



A question though: does it even matter with ABS?

 

[nball]

For $13 a piece I'll give them a try. . then just take it easy until I get use to it... From the looks of the original factory shoes after 125,000 miles Having rear brakes that work might be a good thing

 

[Blakers]

Re: brakes

Originally posted by KYOUNG

but will lock up easily in wet conditions..... be careful!

I have the one ton cylinders and new seals behind the seat - just have not had a chance to put them in yet.



But with ABS or rear antilock (what I have), the rear brakes should not lockup anyway, even with bigger brakes. At least if the antilock is working right.



Blake

 

[SRehberg]

I noticed in this months TDR publication, in the first generation trucks, that people were converting their 2. 5" shoes over to 3" shoes without any difficulty, to go along with the 1-ton cylinders. Doesn't the 1st generation trucks use the same rear end as we do in ours? Does it increase the braking even more, or is there a point of no benefit?

 

[nball]

I Made the change too one ton brake cylinders last night. . Took Big Blue for a test drive, and noticed a definite improvement in braking... It was well worth the $27 I gave to PEP BOYS... Thanks for all the good input... . norm

 

[Cooker]

I glad they worked out well for you. You can add one more TDR contributed BOMB to the truck.

 

[Darel]

I was wondering about the 3" shoes, too.

 

[SRehberg]

I was hoping someone who had installed the 3" shoes would come on the thread and let us know how it went, or if it only can be changed out on the first generation.



Darel: Liked your signature "empty wallet"

 

[sam peterson]

1st generation trucks have 12 inch drums x 2 1/2 in wide shoes--retrofittable to 3 in---2nd generaton has 13 inch drums x2 1/2 --not retrofitable to anything wider because of wear the shoe rides on the backing plate. ---Sam

 

[SRehberg]

Well, so much for that idea. I guess we'll just be happy with the larger cylinders!