Wadesters
SILVER Star
Differences between a 1977 FJ40 Frame and 1980 FJ40 Frame? What will I run into if a swap for the earlier model frame? Can it be done? Thanks in advance....
Differences between a 1977 FJ40 Frame and 1980 FJ40 Frame?
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- tub mounts changed.
- front spring hanger moved back 10mm (this may have been in 82)
- cross member.
- engine and gearbox mountings.
- front spring hanger moved back 10mm (this may have been in 82)
- cross member.
- engine and gearbox mountings.
Last edited:
Living in the Past
SILVER Star
Tub changed but the engine and transmission mounts were the same. 8/80 is when the crosmember was added to the transmission. Not sure the crossmember changed. I got a 76, 79 and 82 frames. The gas tank mounted under the tub starting in 79. The radiator mounts were different starting in 79. The tub is going to take the most work.
Has anyone done this yet? It looks like you would have to add a tab to the frame for the mount. But, are the rear mounting holes in the dame locations?
FYI,
I am about to swap an 79 80 tub onto a 77 Frame. Differences amd solutions:
I am acquiring the Frame wings / horns, that mount to the tub just in front of the rear spring hangers. On the later models, these perches come out further from the frame. They are hot riveted to the frame in the same plate however. My plan is to swap these out on the frame.
I have a 12/79 rear cross member because the holes are in adifferent place, But I may decide to use my existing and drill a new pair of holes. There are only two rear tub mounts as opposed to 4 on the earlier models.
The front mounts under the cowl are different, slightly. Late models angle upward as opposed to the early models which come out flat and perpindicular to the frame. I will probably leave these on as well and space them properly.
I am unsure of any issues with the gas tank and stock cross member. I will test fit this soon and add those details for anyone looking into this.
I am about to swap an 79 80 tub onto a 77 Frame. Differences amd solutions:
I am acquiring the Frame wings / horns, that mount to the tub just in front of the rear spring hangers. On the later models, these perches come out further from the frame. They are hot riveted to the frame in the same plate however. My plan is to swap these out on the frame.
I have a 12/79 rear cross member because the holes are in adifferent place, But I may decide to use my existing and drill a new pair of holes. There are only two rear tub mounts as opposed to 4 on the earlier models.
The front mounts under the cowl are different, slightly. Late models angle upward as opposed to the early models which come out flat and perpindicular to the frame. I will probably leave these on as well and space them properly.
I am unsure of any issues with the gas tank and stock cross member. I will test fit this soon and add those details for anyone looking into this.
