Hello and Welcome. I have a 68 C10 that the prior owner/s had put in a 89 Pontiac 305 ci motor ( looks exactly like any SBC motor) with a Holley 4 Bbl along with a 92 Pontiac Trans Am 4L60 (not an E, Not a computer trans) 4 spd overdrive . . . . . .AND HERE'S WHERE YOUR AUTO LINKAGE HOOKUP TO THE THREE ON THE TREE (TOTT) LINKAGE COMES INTO PLAY. Yes mine also was hooked up just like yours but it didn't have any problems like "locking up" as you claim, mine would shift from park down to low position with out catching on any stops ( just slid from top to bottom). Is your trans a 3 spd T350 or a 4 spd OD 4L60 (Former 700R4 family)? Here's what I did when I found a 69 C10 Auto Column and re designed it to accommodate the OD shift pattern at top and bottom of the column. I hope the pictures download onto here.
I hope my explanation wordings above and below in pics is understood, if not post what you don't understand and I'll get back with you. Pic 1 and 2 shows where I cut out metal for the extra room I needed. Pic 3 shows how the OEM pattern at the Shift indicator is for a 3 SPD and the re designed pattern for my 4L60 OD trans at the shift indicator location. Pic 4 shows where I will Weld on a piece of metal for the Shift lever to ride/rest on.
Last edited by MJ Gor'don51; 02/15/20215:15 PM.
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