Emergency brake

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,218
Reaction score
6,200
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
as you can tell your exhaust is also intended to clear a crossmember but if it stayed with that crossmemebr it could go straight
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,218
Reaction score
6,200
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
You must be registered for see images attach

not saying mine is right because it most definitely isnt lol, but your case almost appears closer to the crossmember and like maybe the whole thing got a twist with the driver side staying put while the passenger side stretched that way, ppossibly someone reversing into the t case? Just thoughts. My crossmember doestn seem bent but its not 100% error free, its backwards for one. also i forgot about the driveshaaft going to the front. a w allows a in frame exhaust and forward driveshaft to be protected and in that plane, while the hump allows a driveshaft to go forward but allows a exhaust to pass under it. i suspect a blazer would like this? Also the adapter heights can change too, mine best i can tell is a 85 truck it came out of , hydro clutch originally. linkage now.

Also I forgot if you said yours was stick or not, but either way..
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
29,114
Reaction score
23,993
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
It's hard to tell from the pictures here, but I don't believe that is a 1-ton frame.

You brake cables all look to be in place. My guess is that the one of the rear cables is seized and all the cables were drooping down after someone pushed and released the park brake.
 

LateOnTheBrakes

5.3-Swapped 86 CUCV
Joined
Feb 2, 2020
Posts
463
Reaction score
123
Location
Virginia
First Name
Joshua
Truck Year
1986
Truck Model
CUCV
Engine Size
5.3
It's hard to tell from the pictures here, but I don't believe that is a 1-ton frame.

You brake cables all look to be in place. My guess is that the one of the rear cables is seized and all the cables were drooping down after someone pushed and released the park brake.
Mine is definitely a 1-ton frame. I have the longer leave springs in the rear, the reinforments in the front for lifting the truck onto cargo ships, and the partial VIN in the frame is the M1008 CUCV (1.25-ton).
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
29,114
Reaction score
23,993
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
It looks like you have the shorter foot t-case adapter, so being the taller 1-ton frame, yes the crossmember should mount above the lower frame rail. Since it's an m1008 (pre-'85 type) frame, it would not surprise me if it took a little bit of grinding or notching to make the '85-'86 crossmember fit up in there.
 

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,218
Reaction score
6,200
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
It looks like you have the shorter foot t-case adapter, so being the taller 1-ton frame, yes the crossmember should mount above the lower frame rail. Since it's an m1008 (pre-'85 type) frame, it would not surprise me if it took a little bit of grinding or notching to make the '85-'86 crossmember fit up in there.
Did the frame get thicker or was it a change also seen on the civilian model?
 

LateOnTheBrakes

5.3-Swapped 86 CUCV
Joined
Feb 2, 2020
Posts
463
Reaction score
123
Location
Virginia
First Name
Joshua
Truck Year
1986
Truck Model
CUCV
Engine Size
5.3
My truck is an 86. Built 12/1985.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
29,114
Reaction score
23,993
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
My truck is an 86. Built 12/1985.

Yes, but the CUCV's used '84 era parts in general. Which is why the original crossmember was the flat type with the two separate mounts on the adapter.
 

bucket

Super Moderator
Staff member
Super Moderator
Joined
Aug 3, 2010
Posts
29,114
Reaction score
23,993
Location
Usually not in Ohio
First Name
Andy
Truck Year
'77, '78, '79, '84, '88
Truck Model
K5 thru K30
Engine Size
350-454
Did the frame get thicker or was it a change also seen on the civilian model?

I couldn't say. I've never swapped a later crossmember into a K30 that had the flat crossmember originally.
 

LateOnTheBrakes

5.3-Swapped 86 CUCV
Joined
Feb 2, 2020
Posts
463
Reaction score
123
Location
Virginia
First Name
Joshua
Truck Year
1986
Truck Model
CUCV
Engine Size
5.3
Yes, but the CUCV's used '84 era parts in general. Which is why the original crossmember was the flat type with the two separate mounts on the adapter.
Good to know. I would say about 50% of the parts I buy for this thing don't fit. It's a gamble of whether I'm getting an 86 k30 part, an 86 k10 part, or a 74 k10 part because the axles. Now I can add in pre 84 k30 parts.
 
Last edited:

AuroraGirl

Full Access Member
Joined
Sep 8, 2019
Posts
9,218
Reaction score
6,200
Location
Northern Wisconsin
First Name
Taylor
Truck Year
1978, 1980
Truck Model
K10, K25
Engine Size
400(?), 350
Good to know. I would say about 50% of the parts I buy for this thing don't fit. It's a gamble of whether I'm getting an 86 k30 part, an 86 k10 part, or a 74 k10 part because the axles. Now I can add in pre 84 k30 parts.
if you want to have the flat crosmember I think you can the tall adapter and a flat np208 crossmemebr for a k30. but the k30 one is prob harder to find because.. well.. yeah. if you arent committed to the np208 you could swap. remember the 1983 k30 would have been a diesel to np208.

Also, whats the tag on the NP208 say for year? mine is 84
 

LateOnTheBrakes

5.3-Swapped 86 CUCV
Joined
Feb 2, 2020
Posts
463
Reaction score
123
Location
Virginia
First Name
Joshua
Truck Year
1986
Truck Model
CUCV
Engine Size
5.3
I can't read the tag. Someone painted over it. I think the sm465 and np208 are from the 4.3L V6 K10 that the truck has parts from.
 

Forum statistics

Threads
42,139
Posts
909,992
Members
33,640
Latest member
jackscott2005
Top