I like the kwik wire kit. Cheaper than painless and better i believe. Easy to install with name of what the wire goes to on the wire. Done may 4 or 5 total done 1 my 66 impala, 94 jeep wrangler with 350 chevy, 47 chevy fleetmaster and a few others. Kwikwire.com
What you think upgraded my instrument cluster to white gauges. Ues they ate stickers like installing window tint but easy up grade. For my 91 suburban.
Well found the problem brand new MC and found out it was bad. Replaced it again and now works great. Now i need to find a speedo for my truck 1991 suburban yes has electric not cable.
I was thinking about the proportioning valve as well but cant seem to find anyone that sell them.
Plus was told my MC was new and found it was a rebuilt so switchibg that out tomorrow with a new one plus the new MC is cheaper but $10.
91 Suburban sorry didnt see a posting for suburban just the Jimmy area. Gravity bleed system then had my son bleed it with me. Up closed bleeder down opened bleeder. Did that about 5-8 time each side Even back as well farthest to closest to MC. Havent checked back for leaks or out of adjustment...