The Stovebolt Site Forums The Shop Area The HiPo Shop ?? changes in the front x-member from '60 on up??

Would anyone know when certain chassis stopped using the almost universal 3/4ton style IFS(not torsion)? I hear my '62 could use anything '63 on up to '87. I know the normal cutoff for 3/4ton is '87 but I hear suburban front x-members are usable until '91. I have access to a 1989 g20 3500 series cargo van (8 lug wheels all around), any chance this is the same as the suburban due to the fact is "heavy duty"???

Also, does anyone have a picture of a stripped x-member that they've installed onto their '60 or older truck? Anything from a later ('89-'91) model suburban would be awesome!
Thanks!

they used the 87 frt end up to 91 in the suburbans and changed it out earlier on other models so it is not an upgrade on earlier versiona. I doubt that the van frt end is the same
60-62 is diffeent from 63-66 due to width of the frame, but the newer ones will still go in. just a few more holes to drill I think
ron

The G series vans were the same up to '95, however, while the basic suspension is the same, the steering linkage is different due to the location and angle of the steering box.
On the truck side of things, the Suburbans and some models of pickups, mainly 4 door crew cab 1 tons and also Cab and Chassis models, used the '73-'87 style frame until '91.

I'm okay with the difference in steering because that may prove to be an advantage. Also, knowing the hub distance is farther apart in the G vans vs. the pickups is a good thing as well. I don't however know the distance in width vs. the two.

I'm not working with your standard pickup. My '62 is a dubl-duti, check out the link in my signature to see a few pics. I'd just like to be able to tuck a wheel and tire under my "fender"

thanks for the help guys