![]() |
Register or Log In To remove these advertisements. |
|
|
![]() |
|
Thread Tools | Display Modes |
|
![]() |
#1 |
Vintage 4x4s
Join Date: Sep 2010
Location: Prior Lake, MN
Posts: 4,305
|
Re: First hand experience with changing to the NBS master cylinder WOW!
Getting ready to do this and a couple things are bugging me.
1) Everyone buys a NBS MC with application for a truck with rear disc brakes. All GMT400's had rear drums. Does it not matter? 2) Anyone done this on a truck with rear ABS only (94 down)? There is hardly any length of line between the ABS setup and the MC on the older trucks. The 95 up have the ABS stuff a ways from the MC on the fender so that makes things easier. All pics I've seen are 95 up. Thanks in advance.
__________________
67 GMC K1500 Custom- 305V6 SM420, PTO, Ram Assist, yellow (the outcast) (project period correct upgrades) 67 GMC C2500 351V6 TH400, AC, PS, PB (can't decide what to do with. Update, decided to keep and will restore ![]() 86 CHV K30 502 th400, apple red NEW 71 CHV K20 350 SM465, ochre (saved work truck) 71 CHV K20 292 SM465, white, tach, PTO, (future project) 72 CHV K20 350 350th, medium blue (project stocker) 01 CHV K2500hd crew, indigo blue ^3 dont run and the others don't see winter either '86 K30 Cummins "Fireside" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=649649 '71 K20 "get driveable" thread: http://67-72chevytrucks.com/vboard/s...d.php?t=590642 '72 K20 Build Thread: http://67-72chevytrucks.com/vboard/s...=493477&page=6 |
![]() |
![]() |
![]() |
#2 |
driving is in my blood
Join Date: Dec 1999
Location: Mesa AZ
Posts: 5,726
|
Re: First hand experience with changing to the NBS master cylinder WOW!
That's been answered many times in this thread. The vast majority of people doing this are not doing rear disk brake swaps along with it. Its works great.
__________________
-78 c10 short/step: 388cid, M20, 5/5 drop, lots more. Playtoy and first vehicle. -98 c1500 x-cab: 5.7L, 17" rims, 5/6 drop, flowmaster, helper bags,NBS rear disk brakes. -02 Suburban 4x4: leveled front -CBR600F4i, CBR600RR, CBR1000RR, and standup skis DISCLAIMER: I cant spell for the life of me. |
![]() |
![]() |
![]() |
#3 | |
Registered User
Join Date: Feb 2016
Location: Omaha, NE
Posts: 38
|
Re: First hand experience with changing to the NBS master cylinder WOW!
Quote:
__________________
1988 Chevrolet C1500 RCSB |
|
![]() |
![]() |
![]() |
#4 |
Registered User
Join Date: Feb 2009
Location: Surrey B.C. Canada
Posts: 255
|
Re: First hand experience with changing to the NBS master cylinder WOW!
Accomplished this today as well and do not notice a huge difference. Lots of dark fluid on the bleed and reservoir on the old mc was really dirty. Going to wait a week and try another bleed. Thanks to the op for the part numbers and tutorial.
__________________
Life is too short to drive a boring vehicle. |
![]() |
![]() |
![]() |
#5 |
Registered User
Join Date: Jan 2006
Location: Smithfield, VA
Posts: 1,501
|
Waste of time
Do the automatic bleed process. Best 3 minutes time spent every time.
|
![]() |
![]() |
![]() |
#6 |
Registered User
Join Date: Feb 2009
Location: Surrey B.C. Canada
Posts: 255
|
Re: Waste of time
Spent an hour searching for the “ automatic bleed process “ and could not find it.
__________________
Life is too short to drive a boring vehicle. |
![]() |
![]() |
![]() |
#7 |
Moderator
![]() Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,954
|
Re: First hand experience with changing to the NBS master cylinder WOW!
If you want to do an auto bleed that's the way it's done.
A Tech2 clone is $259. I own one. They work. GM VXDiag is around $110 and it comes with Tech2Win and TIS2000. You need a Windows laptop to go this route and those aren't free. The NAO 33.004 Tech2 BIN file is available on the Tech2 Wiki if it's not shipped with the VXDiag tool. The Snap On Solus tools can be had used for just under a grand. AutoEnginuity can do it as well but you need a laptop and the cost is right around $500. There are probably a handful of other tools in the $500 on up range that can do it on some but not all ABS systems. The nice thing about the T800 master cylinder is the round three tab cap that takes one of the leak free pressure bleeder adapters... Motive 1107 ![]() SPX Kent Moore J-35589-A ![]()
__________________
1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. Last edited by hatzie; 01-20-2019 at 04:28 PM. |
![]() |
![]() |
![]() |
#8 |
Registered User
Join Date: Nov 2009
Location: Tampa Fl.
Posts: 103
|
Re: First hand experience with changing to the NBS master cylinder WOW!
Digging up this old thread,hoping someone can help me with brake line orientation on a 99 master cylinder. I am putting the hydroboost unit from a 99 silverado in my 62, but I am unsure if the master is front port to front brake, rear to rear.
|
![]() |
![]() |
![]() |
#9 | |
Registered User
![]() Join Date: Jun 2011
Location: Bradenton, Fla.
Posts: 1,100
|
Re: First hand experience with changing to the NBS master cylinder WOW!
Quote:
( But we are talking about GM).... My suggestion is to just stop by a repair shop.... Good luck
__________________
'70 GTO Midnight Blue '88 GMC Sierra SLE 392,000 miles-(2018) sold to Classic car shop in Germany. '93 Cadillac STS Black '93 Mercedes SL 500 Teal '86 Yamaha FZ750 - 15,000 RPM '86 Yamaha FJ1200 - Criminally Fast 2016 Ferrari 488 GTB, I drive it - don't own it. '05 GMC Yukon XL , SLT 4wd ( just purchased 2018) |
|
![]() |
![]() |
![]() |
#10 | |
Moderator
![]() Join Date: Oct 2008
Location: Wentworth, NH
Posts: 4,954
|
Re: First hand experience with changing to the NBS master cylinder WOW!
Quote:
The 99 abs metering module took care of biasing. Not sure how the old fashioned combination valve will react.
__________________
1959 M35A2 LDT465-1D SOLD 1967 Dodge W200 B383, NP420/NP201 SOLD 1969 Dodge Polara 500 B383, A833 SOLD 1972 Ford F250 FE390, NP435/NP205 SOLD 1976 Chevy K20, 6.5L, NV4500/NP208 SOLD 1986 M1008 CUCV SOLD 2000 GMC C2500, TD6.5L, NV4500 2005 Chevy Silverado LS 2500HD 6.0L 4L80E/NP263 2009 Impala SS LS4 V8 RTFM... GM Parts Books, GM Schematics, GM service manuals, and GM training materials...
And please let us know if and how your repairs were successful. |
|
![]() |
![]() |
![]() |
#11 |
Registered User
Join Date: Jun 2018
Location: Austin
Posts: 5
|
Re: First hand experience with changing to the NBS master cylinder WOW!
Speedy. What booster did you use to mount the nbs mc in the older c10. The mc have a bigger hub that won't fit in the older master cylinder. I want the newer mc because I have all 4 rear brakes and the old mc is feels to soft. Thanks
|
![]() |
![]() |
![]() |
Bookmarks |
Tags |
1988-1999, brakes, mushy, obs |
|
|