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Re: 3 spd on the tree 72 k10
The first thing I ever did in a 4wd that came witha 3spd is swap it out. It's a horrible transmission for a 4wd. 1st and reverse are so high they are worthless...and that puts more strain on the weak units. I busted one main shaft before getting to the swap on a '71 Blazer I had. I didn't change any crossmembers that I recall. And that one had the wimpy Dana 20 transfer case. I swapped a TH350/NP205 right in. It was easy, but I did have a complete '72 Blazer donor.
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"BUILDING A BETTER WAY TO SERVE THE USA"......67/72......"The New Breed"
GMC '67 C1500 Wideside Super Custom SWB: 327/M22/3.42 posi.........."The '67" (project)
GMC '72 K2500 Wideside Sierra Custom Camper: 350/TH350/4.10 Power-Lok..."The '72" (rolling)
Tim
"Don't call me a redneck. I'm a rough cut country gentleman"
R.I.P. ~ East Side Low Life ~ El Jay ~ 72BLUZ ~ Fasteddie69 ~ Ron586 ~ 67ChevyRedneck ~ Grumpy Old Man ~
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