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glock35ipsc · 10-13-2009, 10:00 AM

I would think the speedo (and cluster) from a 90-91 Suburban, Blazer or dually would work. I used a 90 Blazer cluster on my truck, and only had to run one wire from the 5.3L's PCM to the speedo.

10-13-2009, 10:00 AM	#77
glock35ipsc Next project: 1970 K10 Join Date: Feb 2004 Location: Fort Collins, Colo 80524 Posts: 6,685	Re: 5.7 TBI in an 86????? Anyone done this swap?? I would think the speedo (and cluster) from a 90-91 Suburban, Blazer or dually would work. I used a 90 Blazer cluster on my truck, and only had to run one wire from the 5.3L's PCM to the speedo. __________________ *Bob* 1970 Chevy K10 LWB "Goldie" 350/TH350 *next project!!* 1981 Chevy C10 LWB 355/TH350 - My son's truck LS SWAP FORUM! Tons of LS swap info here! PLEASE CLICK HERE TO SUPPORT THE GREATEST BOARD ON THE NET! CLICK HERE FOR THE FAQ INDEX by KRUE