finding factory spec's for 69-72 blazer

[wytnuklryd]

I have been browsing this forum for quite a while and did not feel the need to post until now. I have a project 1969 K-Blazer and I am converting it to a 2WD and have had a hard time finding spec's on wheelbase for these model's. I have a 73-87 IFS assembly that seems to line up well on the factory frame rails.(in fact I'm using a factory hole as a guide and it seems to place the center of the rotor where it should be in stock form)
My measure twice cut once mentality has come in though, and I don't want to weld up the crosmember assembly until I'm absolutey certain it is in the correct location. I've heard that this is a common swap done to these vehicle's because of the rarity of the 2WD in these original Blazer's. I also know that a 2WD assembly from a 67-72 1/2 ton would have been a much easier swap as it truly uses the same rails for both 2wd and 4wd. I just chose to use the 73-87 1/2 ton unit for it's factory 5 lug disc brake rotor's and the availability of part's for years to come. (factory and aftermarket) Also the rear leafs will be swapped for a coil over four link set-up. I live in sunny AZ and have intentions of cruising the truck with the top off 90+% of the time. Any reference link's or personal experiance's would be greatly appreciated. Thank's in advance.

[Mike C]

The early models have a 104" wheelbase. The 73-87 front crossmember is a bolt on affair on these earlier trucks, only requireing a couple of new holes to be drilled. With new perches, you should be able to use the rear axle as well.

[bouncytruck]

Here are some specs on CK5. Not exactly what your looking for but still very interesting

[wytnuklryd]

Originally posted by Mike C
The early models have a 104" wheelbase. The 73-87 front crossmember is a bolt on affair on these earlier trucks, only requireing a couple of new holes to be drilled. With new perches, you should be able to use the rear axle as well.

Thank's for the info I am at 104" now but I just dont like doing thing's twice. As for the rear axle it is also being replaced to match the 5 lug front rotor's.
Another question I have is has anyone seen a full removable top Blazer with 1999-present bucket seat's?
I think the integrated 3-point seatbelt is a good safety precaution and I assume it would look pretty good as well. I'm also wanting to add the 2000-present Suburban third row seat because it is removable and has the 3-point seatbelt's as well.
For the powertrain I am thinking the 700R4 and Sequential Fuel Injected (SFI ) 1997 Vortec (255 hp) sitting in the corner of the garage will be a potent and reliable combination.
Any other suggestion's for a safe reliable daily driver?

[bouncytruck]

make sure you post some pictures if you go with the newer seats. I'd be very interested in seeing how that would work. Sounds like you've got some good plans for your rig.