1034.0.0.3. If a transferor and a transferee, within the meaning assigned to those expressions by the first paragraph of section 336.8, make a joint election under Chapter II.1 of Title VI of Book III in respect of a split-retirement income amount for a taxation year, determined in their respect for the purposes of that chapter, they are solidarily liable for the tax payable by the transferee under this Part for the year to the extent that that tax payable is greater than it would have been if no amount had been added because of the first paragraph of section 313.11 in computing the income of the transferee under this Part for the year.