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+ pro-tourings10.com  » Chassis & Suspension  » General Suspension 
|- Front end rebuild. Need info on TBJ, ZQ8 shock alternatives (QA1?) and Brakes! 
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Author Topic: Front end rebuild. Need info on TBJ, ZQ8 shock alternatives (QA1?) and Brakes!  (Read 9679 times)

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So I found a set of blazer brakes for sale locally, seller says they came off a vehicle with 100k in the chassis (unable to verify myself).

Includes 2 hubs (he says they are not OEM, aftermaket replacements and are in good shape)
stock blazer spindles (i'll probably order some belltech drop spindles)
backing plates (are these even needed?)
Calipers and brackets
Rotors that can be turned.

price is $100 so I think I'm going to pull the trigger since it'll only be another ~$125 to reseal the calipers, turn the roaters and get some decent pads. $225 out the door for a brake upgrade (not including drop spindles) seems worth it and opens the door to easy future brake upgrades with the blazer spindles.

What do I need to do with the brake lines? I'm still unclear on what my options are and/or what I can buy to make it a seemless install. This is a daily driver at the moment so I'd prefer to get it done over a weekend so I'm not stuck driving my 1960 corvair to work.

Re: Front end rebuild. Need info on TBJ, ZQ8 shock alternatives (QA1?) and Brakes!

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Sorry I've been MIA. Quitting my job and focusing on projects and tasks for the next adventure have been distracting me from the internet. Heck I'm likely to disappear for months at a time here soon.

If you haven't already picked it up that is a good deal.  Keep an ear out for groaning from either of the bearings. They become fairly obvious when they're bad.  The backing plates I'm guessing are the splash shields. They're not necessary.


From what I remember on my brake line size research is it has to do with the year of the truck. Comparing my '98 Isuzu to my 2000, my 2000 had the larger lines just like my 2000 Blazer. The issue I was having is that the brake hoses I ordered for the 2000 Blazer brakes would not screw onto the '98 Isuzu hard lines. The hose for the newer truck had too large of a fitting, so if you are keeping the line size as is order for the year of your truck.

I'm not sure how much better I can describe with words the difference between the two. Honestly if you pick up the brackets for the Blazer and hold them up to where they would be installed on the S10, the difference will be very obvious.  The S10 lines come off the frame and point toward the front of the truck. They are completely horizontal. The Blazer lines follow the same path until they extend outside the frame and then take a 90* angle downward to mate up with the bracket.

The bender you linked on Amazon is practically the same bender I used to modify my lines. The fitting might be in the way some, but I was able to make it work even with that.

This is a picture of how my 1998 Hombre was modified to work with the Blazer bracket on the driver side of the truck. It was originally straight and pointing forward where the 90* bend is now made.




I've done the Blazer brake hoses 3 ways now. My memory isn't perfect on the Hombres as while I was swapping the brakes between the two trucks after the initial swap on the 1998 I was having to piece together working brake lines for both trucks.

On my 1991 S10 - smaller hardline, S10 hose: kept everything stock to the S10 and looped the hose to work. It rests on the caliper, which isn't ideal, but I haven't worn either of the hoses out yet. I don't suggest it, but it has worked.

On my 1998 Hombre - smaller hardline, 1 of each hose: bent down to match the Blazer brake line bracket. The one side I broke bending it, so I reflared with the correct fitting to match the Blazer. The other side I used the S10 hose. I don't remember how well that worked, but I wasn't entirely comfortable with it. Before I had any issues I swapped the setup to the 2000 Hombre.

On my 2000 Hombre - larger hardline, Blazer hose: I believe I bent both of the hardlines down to match. I used Blazer hoses on both sides, so no clearance or rubbing issues.

Re: Front end rebuild. Need info on TBJ, ZQ8 shock alternatives (QA1?) and Brakes!

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I'll be doing this on a 2000 Sonoma, so crossing my fingers it also has the bigger hardline your 2000 Hombre did, I imagine it is the same between GMC/Chevy/Isuzu, my only issue will be if it was a mid year change and I have the earlier smaller installation.

Assuming I do have the bigger hardline, the blazer caliper hoses should connect to the hardline?

I think I can handle bending those lines if the rest is simply bolt on.

Re: Front end rebuild. Need info on TBJ, ZQ8 shock alternatives (QA1?) and Brakes!

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I don't have any evidence, but I suspect the earlier Blazers were the smaller line too. In theory order the hose size to match the line size. You can test fit before bending too.

What year are the donor brakes? Test fit those hoses before deciding which year to try purchasing.

And while I was saying all of this I decided to make a quick comparison of part numbers at the part store:

1999 S10 hoses are a 3/8-24 fitting.

2000 S10 hoses are a 7/16-24 fitting.

1999 Blazer hoses are a 3/8-24 fitting.

2000 Blazer hoses are a 7/16-24 fitting

Actually the 2000 was a crossover for the 4 door Blazers. There were both sizes listed, so bump up to 2001 when ordering to guarantee the right part. I didn't see that split for the 2000 S10 on the AutoZone website.

Re: Front end rebuild. Need info on TBJ, ZQ8 shock alternatives (QA1?) and Brakes!

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interesting that they are imperial threads.
I did not know
my blazer is cooler than your s10

 

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