Planning Tire and Rim size

[KDGRIN]

I think we are still talking about a 71 GMC Jimmy. The 73-up body has more wheel well clearance.
I personally would keep it as low of a lift as possible. Steering, driveline angle and receiver hitch hanging off of the frame should be kept in mind. Let alone the cost of larger than 35" tires on 17" rims.
I think the best overall set up, for what you are wanting to do, would be 4" lift, 1" body, and 35" tires with minimal cutting. Make 1 cut and save the pieces in case you want to change back or sell it down the road.

 

[rjkharry]

Thanks for all the input. I think after all that I agree. 4" lift 1" body with 35" on 17" rims. The only question now is width. I want them to stick out a little. I think everyone says about the same thing rim 3-4" smaller than tire but what will give me what I'm looking for. Also can anyone guide me to a post showing pics of what I will have to cut. And if I am cutting is there someone who makes a bulky flare that I could install.

And I guess I should have mentioned it in this thread. My truck is a 71 Jimmy on a 91 Dodge cut down frame with a Cummins.
How do I begin to find a lift for my truck. I also want to do dual shock mounts. Where is the best place for me to look for this lift set up.

 

[jt512]

For a lift either look for an off the shelf kit for a first gen dodge with the Cummins or if you want to go a step further contact ORD about some custom front springs for your specific application. The rear can just be a shackle flip to get you 4" and maybe a zero rate if needed.

 

[KDGRIN]

I think a common wheel width for a 17" is 9" wide. You might have to do a search on other first gen Blazers with the same setup.

 

[Chevy305]

I think we are still talking about a 71 GMC Jimmy. The 73-up body has more wheel well clearance.
I personally would keep it as low of a lift as possible. Steering, driveline angle and receiver hitch hanging off of the frame should be kept in mind. Let alone the cost of larger than 35" tires on 17" rims.
I think the best overall set up, for what you are wanting to do, would be 4" lift, 1" body, and 35" tires with minimal cutting. Make 1 cut and save the pieces in case you want to change back or sell it down the road.

X2

I tow my 19' boat with my shortbed K10 (which is slightly longer than a K5) on a 4" lift 2" body and 35x12.5r15s. The boat and trailer weighs in around 5000 pounds and its not a lot of fun towing it. It sways and bounces a lot due to the height of the hitch and all that sidewall flex I have in those tires. When my tires wear out I'm definitely upping my rims to 17"s to eliminate that extreme sidewall flex.

Btw the tires only rub when turned and flexed hard.