Converting from drum to disk - The 1947 - Present Chevrolet & GMC Truck Message Board Network

71402BB · 03-07-2004, 09:35 PM

Hey all, I'm getting ready to do brakes on my 68 burb'n this spring and wanted to know if anybody had done one of those 6-lug disk brake conversions to there 67-70? If so what did you think? Did the kit have everything you needed to do the compleat job? Thanks for any feedback. -Brian

dinnut · 03-07-2004, 09:38 PM

im pretty sure lobo 74 did it. i want to get 6 lug rotors instead of switching to 5 but they are too expensive!!!

71402BB · 03-07-2004, 09:44 PM

Dinnut- 6 lug rotors expensive? I have seen in classic trucks mag a few different supplyers that sell the whole convertion kits for $239.00.......

PanelDeland · 03-07-2004, 10:27 PM

71 the $239.00 is for the brake kit.It doesn't include the spindles for disc.The spindles are another $229.00. You can get them in 2 1/2 lowered or stock.The disc wont bolt to stock drum spindles.There is another kit that consists of just brackets to install disc on the drum spindles but if I remember right it sells for about$149.00.Good luck with your conversion.

71402BB · 03-07-2004, 10:37 PM

Oh, ok I see! I knew that disc's didn't fit on drum spindels but they made it sound that way! Thanks for clearing that up!

dinnut · 03-07-2004, 11:17 PM

well, they were too expensive for me right now...... plus shipping would be expensive as a mother

Billy G · 03-07-2004, 11:41 PM

Im converting my son's 70 GMC to disc. I went out and bought a K-member from rotor to rotor...including the calipers, the proportioning valve, lines...ect. My plans are to swap the whole thing out, THEN get 6-lug rotors, being we'd allready bought wheels. This way I can redo the ball joints, control arm bushings, ect...paint the assembly, and then swap out the whole piece. Im planning on swapping out the manual steering gear in lieu of power while Im at it. Any advise on this subject would be GREATLY appreciated....as I know 1 or 2 of the holes have to be elongated somewhat. Im planning on taking pictures as we go, and I'll be posting them on our website.

Billy G

**FRENCHBLUE72** · 03-08-2004, 12:01 AM

I am wondering what happen's when the rotor's wear out or something bad happen's to the rotor's do you have to buy a new one from E.C.E. or ?????

EdB · 03-08-2004, 12:31 AM

I put in one of the kits from Stainless Steel Brakes last year.
Everything went on ok. The problem was that the kit was
shipped with the wrong bolt to hold the backing plate. It
rubbed the rotors when I made a turn. This wore grooves
in the rotors. I had to make several calls and write letters.
They shipped new bolts and rotors and it has worked fine
since.

EdB

71402BB · 03-08-2004, 01:51 AM

edb- thats good to know thanks for the info.

frenchblue72- Thants a good question, I'd like to know also.
Does anybody else have any input?

03-07-2004, 09:35 PM	#1
71402BB now thats a true COON DOG Join Date: Nov 2000 Location: Franconia, NH Posts: 1,977	Converting from drum to disk Hey all, I'm getting ready to do brakes on my 68 burb'n this spring and wanted to know if anybody had done one of those 6-lug disk brake conversions to there 67-70? If so what did you think? Did the kit have everything you needed to do the compleat job? Thanks for any feedback. -Brian __________________ current project 67 402BB stout th350 3.08's with a locker. Plan on tubs 18.5's out back! (thanks Burnsman!) 71 SWB Stepside, was a 250, now is a 402 Big Block with 4 speed and 3.73's ( was crushed by a tree, bed sold, motor pulled) was my first truck!... oh well... 72 LWB 4x4 350 4-speed 3.08's posi wearing army olive drab green (SOLD!) 68 BURB 50TH LOOKALIKE work in progress, soon to have 250-I6 with a 3-speed on the tree 4.11's and posi ( currently sitting in back yard tarped awaiting time, $$$, and lots of love!) 67 1 TON- work truck 396 sm 420 4-speed, flat bed 4.57 gears "big red" (my first landscape truck, very rusty and crusty! but still gets the job done when needed!)

03-07-2004, 09:38 PM	#2
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	im pretty sure lobo 74 did it. i want to get 6 lug rotors instead of switching to 5 but they are too expensive!!! __________________ 70 longbed 496/th400/Ford 9"

03-07-2004, 09:44 PM	#3
71402BB now thats a true COON DOG Join Date: Nov 2000 Location: Franconia, NH Posts: 1,977	Dinnut- 6 lug rotors expensive? I have seen in classic trucks mag a few different supplyers that sell the whole convertion kits for $239.00....... __________________ current project 67 402BB stout th350 3.08's with a locker. Plan on tubs 18.5's out back! (thanks Burnsman!) 71 SWB Stepside, was a 250, now is a 402 Big Block with 4 speed and 3.73's ( was crushed by a tree, bed sold, motor pulled) was my first truck!... oh well... 72 LWB 4x4 350 4-speed 3.08's posi wearing army olive drab green (SOLD!) 68 BURB 50TH LOOKALIKE work in progress, soon to have 250-I6 with a 3-speed on the tree 4.11's and posi ( currently sitting in back yard tarped awaiting time, $$$, and lots of love!) 67 1 TON- work truck 396 sm 420 4-speed, flat bed 4.57 gears "big red" (my first landscape truck, very rusty and crusty! but still gets the job done when needed!)

03-07-2004, 10:27 PM	#4
PanelDeland I am a Referee of life. Join Date: Jun 2000 Location: Greensboro N.C. Posts: 13,993	71 the $239.00 is for the brake kit.It doesn't include the spindles for disc.The spindles are another $229.00. You can get them in 2 1/2 lowered or stock.The disc wont bolt to stock drum spindles.There is another kit that consists of just brackets to install disc on the drum spindles but if I remember right it sells for about$149.00.Good luck with your conversion. __________________ The 47-present Chevrolet and GMC Truck Message Board Network,it's owners,moderators,members,and associates of any type should not be held responsible for my opinion. You can't fix stupid,not even with duct tape. "My appearance is due to the fact that "GOD" does punish you for having too much fun!" Barrett-Jackson has perfected alchemy,they make rust into gold! "You can lead a horse to water but you can't saddle a duck" "Cleverly disguised as a 'Responsible Adult' "Sometimes your Knight in shining armor is just a retard in tinfoil"

03-07-2004, 10:37 PM	#5
71402BB now thats a true COON DOG Join Date: Nov 2000 Location: Franconia, NH Posts: 1,977	Oh, ok I see! I knew that disc's didn't fit on drum spindels but they made it sound that way! Thanks for clearing that up! __________________ current project 67 402BB stout th350 3.08's with a locker. Plan on tubs 18.5's out back! (thanks Burnsman!) 71 SWB Stepside, was a 250, now is a 402 Big Block with 4 speed and 3.73's ( was crushed by a tree, bed sold, motor pulled) was my first truck!... oh well... 72 LWB 4x4 350 4-speed 3.08's posi wearing army olive drab green (SOLD!) 68 BURB 50TH LOOKALIKE work in progress, soon to have 250-I6 with a 3-speed on the tree 4.11's and posi ( currently sitting in back yard tarped awaiting time, $$$, and lots of love!) 67 1 TON- work truck 396 sm 420 4-speed, flat bed 4.57 gears "big red" (my first landscape truck, very rusty and crusty! but still gets the job done when needed!)

03-07-2004, 11:17 PM	#6
dinnut Registered User Join Date: Apr 2003 Location: missouri city, tx Posts: 4,486	well, they were too expensive for me right now...... plus shipping would be expensive as a mother __________________ 70 longbed 496/th400/Ford 9"

03-07-2004, 11:41 PM	#7
Billy G Registered User Join Date: May 2003 Location: Dayton, Tx (in Old River) Posts: 286	Im converting my son's 70 GMC to disc. I went out and bought a K-member from rotor to rotor...including the calipers, the proportioning valve, lines...ect. My plans are to swap the whole thing out, THEN get 6-lug rotors, being we'd allready bought wheels. This way I can redo the ball joints, control arm bushings, ect...paint the assembly, and then swap out the whole piece. Im planning on swapping out the manual steering gear in lieu of power while Im at it. Any advise on this subject would be GREATLY appreciated....as I know 1 or 2 of the holes have to be elongated somewhat. Im planning on taking pictures as we go, and I'll be posting them on our website. Billy G __________________ My FAMOUS LAST WORDS...."Ima Gonna!!" - 1970 GMC 1500 swb/step 250 I-6 3 spd - "The GEM" - 1976 Chev Scotsdale swb/step 350/350 - "The JEWEL" - 1982 Chev C-10 swb/step 250 I-6 3 spd - - 2001 Chev Silverado LT -

03-08-2004, 12:01 AM	#8
FRENCHBLUE72 PROJECT 7DEUCE Join Date: Dec 2002 Location: GRANTS PASS OR Posts: 21,590	I am wondering what happen's when the rotor's wear out or something bad happen's to the rotor's do you have to buy a new one from E.C.E. or ????? __________________ GO BIG GREEN GO DUCKS MEMBER #6377 72 k-5 daily driver 6'' lift 35'' 350-350-205 slowly getting rust free. Project "7DEUCE" check out my build http://67-72chevytrucks.com/vboard/s...d.php?t=267665 Tim Powell..R.I.P EastSideLowlife..... R.I.P..

03-08-2004, 12:31 AM	#9
EdB Registered User Join Date: Jan 2003 Location: Gulfport Ms Posts: 401	re brakes I put in one of the kits from Stainless Steel Brakes last year. Everything went on ok. The problem was that the kit was shipped with the wrong bolt to hold the backing plate. It rubbed the rotors when I made a turn. This wore grooves in the rotors. I had to make several calls and write letters. They shipped new bolts and rotors and it has worked fine since. EdB

03-08-2004, 01:51 AM	#10
71402BB now thats a true COON DOG Join Date: Nov 2000 Location: Franconia, NH Posts: 1,977	edb- thats good to know thanks for the info. frenchblue72- Thants a good question, I'd like to know also. Does anybody else have any input? __________________ current project 67 402BB stout th350 3.08's with a locker. Plan on tubs 18.5's out back! (thanks Burnsman!) 71 SWB Stepside, was a 250, now is a 402 Big Block with 4 speed and 3.73's ( was crushed by a tree, bed sold, motor pulled) was my first truck!... oh well... 72 LWB 4x4 350 4-speed 3.08's posi wearing army olive drab green (SOLD!) 68 BURB 50TH LOOKALIKE work in progress, soon to have 250-I6 with a 3-speed on the tree 4.11's and posi ( currently sitting in back yard tarped awaiting time, $$$, and lots of love!) 67 1 TON- work truck 396 sm 420 4-speed, flat bed 4.57 gears "big red" (my first landscape truck, very rusty and crusty! but still gets the job done when needed!)



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