crew cab mount dimensions

[Ackattack]

I'm going to be putting a crew cab onto my dodge cummins frame and was looking at the dodge frame trying to come up with a game plan.

Does any one have the dimensions of the 73-91 crew cab mounts. Side to side, front to back, and if there is any elevation difference.

As part of this build, I'm making it a shortbed, so I figure my wheelbase needs to be 150.5". Is that right?

[2wd73blazer]

I am trying to figure that out also. Wikipedia has the shortbed at 117.5" wheelbase, the longbed at 131.5" wheelbase, and the crewcab at 164.5" wheelbase. I think that since a rcsb is 14" shorter than the rclb then a ccsb should be 14" shorter than the cclb which would make it a 150.5" wheelbase. Anyone know for sure?

[86c20]

i have heerd the 150.5 also. i will be looking into this as i am thinking about a ccsb with a 6v detroit for my highway puller

[1774btcrew]

I just checked and 150.5 is the wheelbase on my CCSB

[2wd73blazer]

Just found the frame specs in the faq section. The rcsb frame length is 184.22, the rclb frame length is 204.13, and the cclb frame length is 237.13. If I'm looking at it right there is 6" more to cut off behind the rear axle besides the 14" to cut out in front of the rear axle. Anyone know if that is right?

[kwin]

If I remember from my conversion I think there was 14 inches different form a long wheel base to a short.
Hope that helps.

Keith

[gmech]

Originally Posted by Ackattack

I'm going to be putting a crew cab onto my dodge cummins frame and was looking at the dodge frame trying to come up with a game plan.

Does any one have the dimensions of the 73-91 crew cab mounts. Side to side, front to back, and if there is any elevation difference.

As part of this build, I'm making it a shortbed, so I figure my wheelbase needs to be 150.5". Is that right?

I measured these by myself ( didnt have anyone to hold the other end) so I might be a 1/16 to an 1/8 off.

Front 3 1/16" below frame rail
Middle 1" below frame rail
Rear flush

Side to side. Center to center
Front 39"
middle 43 1/2"
Rear 24 1/8"

Front to rear. Center to center
Front to middle 41"
front to rear 76"

[gmech]

Originally Posted by gmech

I measured these by myself ( didnt have anyone to hold the other end) so I might be a 1/16 to an 1/8 off.

Front 3 1/16" below frame rail
Middle 1" below frame rail
Rear flush

Side to side. Center to center
Front 39"
middle 43 1/2"
Rear 24 1/8"

Front to rear. Center to center
Front to middle 41"
front to rear 76"

I gave you some bad info here. The rear cab mounts are flush with the frame, but I forgot to mention that part of the frame is 5" higher. So it sits 5" higher than the top of the lower part of the frame.

If you need any other measurements let me know. My CCSB frame is bare and in the garage.