Will 80s calipers fit on a 74 d100

[moparkrazed]

Hey guys, at my wits end with brakes. I've replaced rhe booster and mc a few times. It seems the 80s model has the most pressure compared tk the 80s model. But both combos are not making the calipers work. Im thinking my issue is the actual caliper, they are new from autozone but that doesn't mean anything these days. When bleeding the brakes the 80s booster and mc shot the fluid out the bleeders forcefully but wouldn't move the cylinder in the calper. The 70s barley has a trickle, but neither allow my front calipers to work. Any thoughts or anything I left out?

 

[7mopar]

I quite the pressure power bleed long ago.
I have yet to try the reverse pressure bleed but have been told it works great. I vacuum bleed if at all possible. Some 70's system was gravity bleed only.
Problem with power bleeding is activation of the over center valve if so equipped.

 

[MILO]

do you have the calipers on with the bleeder on the top

 

[65 sporty]

do you have the calipers on with the bleeder on the top

I thought the same thing

 

[captainchrysler]

Sounds like bad hoses. I've fought similar issues many times that were fixed with new hoses.

 

[MILO]

I thought the same thing

There is a left and a right bleeders have to be on topside

 

[moparkrazed]

Thanks for the replies guys. Finally got the front brakes working. The calipers were on correctly they were just frozen, gotta love quality control on new parts. But at least everything is new and functional now. List of parts below that may help others.

New lines from inline tube, my truck is a club cab and they blue printed my lines so ppl should be able to buy them now.

Booster and mc from 1984 ram (new)
Just need to figure out the bolt to the pedal/booster a little better.

Calipers from napa (way better than autozones)

New drums, brakes, hoses, and wheel cylinders from autozone.

New distrubiton block for a square body chevy. Same design except rear mc line nut was too small so had to adapt that.

Glad to.finally have this thing stopping and now off to the exhaust shop next week. After.that it's time to install the sniper 2 stuff.
Thanks again for everyone's help, it's much appreciated.

 

[Cranky1]

Sounds like bad hoses. I've fought similar issues many times that were fixed with new hoses.

Sure does!

Thanks for the replies guys. Finally got the front brakes working. The calipers were on correctly they were just frozen, gotta love quality control on new parts. But at least everything is new and functional now. List of parts below that may help others.

New lines from inline tube, my truck is a club cab and they blue printed my lines so ppl should be able to buy them now.

Booster and mc from 1984 ram (new)
Just need to figure out the bolt to the pedal/booster a little better.

Calipers from napa (way better than autozones)

New drums, brakes, hoses, and wheel cylinders from autozone.

New distrubiton block for a square body chevy. Same design except rear mc line nut was too small so had to adapt that.

Glad to.finally have this thing stopping and now off to the exhaust shop next week. After.that it's time to install the sniper 2 stuff.
Thanks again for everyone's help, it's much appreciated.

Thought maybe your new flex lines might be clogged.....but may not be quality control problem on the calipers. Probably more like parts sitting on a shelf for years on end....?