Officially, 29th Tank Corps consisted of the:
25th Tank Brigade
31st Tank Brigade
32nd Tank Brigade
53rd Motorized Rifle Brigade
1446th SU Regiment (16 SUs)
108th Antitank Regiment (24 76mm Guns)
271st Mortar Regiment (36 120mm mortars)
747th Anti-tank Battalion (12 85mm Guns)
38th Armored Car Battalion
75th Motorcycle Battalion
193rd Sapper Battalion
But, 29th Tank Corps was in action from July of 1943 to March of 1944.
During this time, in September of 1943 the 1549th Heavy SU Regiment was added (SU-152s) and in October 1943, the 11th Guards Mortar Battalion was added ( BM-13 ) Launchers. The 1446 SU Regiment was re-equipped with SU-85s in late 43 and all the tank brigades were completely re-equipped with T-34s in 3 tank battalions of 65 tanks at the end of 43.
10/23/43--26 Serviceable tanks
12/15/43--22 tanks left
1/7/44--130 Tanks and SUs
1/21/44--42 Tanks and SUs
All of this information is from Sharp Volume II, page 43. I hope it helps.
~D, the EviL Commmissar